Ajinomoto Fusil Pure & Unflavored Review
Fusil Pure & Unflavored from Ajinomoto is a powder supplement that the label identifies as an Amino Acid Supplement. The Supplement Facts panel lists one active ingredient, L-Leucine, at 3 grams per serving, with a serving size of 3 grams and 113 servings per container. The only other ingredient listed is lecithin. The label states that the product contains soy as an allergen. The product is labelled as vegan, vegetarian, kosher (OU), gluten free, and dairy free, and it is listed for adults and children 4 years of age or more. The label describes Fusil as the world's highest purity, fermented, vegetarian-source L-leucine, and as instantized through a proprietary process for higher solubility and beverage dissolution. The label contrasts this with conventional L-leucine, which it says is very difficult to mix into beverages. The label mentions Patented Ferment-A-Pure Technology and says AjiPure amino acids are fermented using only natural vegetable-based carbohydrates as raw materials. The label also states that Ajinomoto Co., Inc. never used raw materials of animal origin in any production process. Suggested use on the label is to mix one level scoop, which is 3 grams, with 6 to 10 fluid ounces of your favorite beverage, then stir, shake or blend for 20 to 30 seconds until the powder is completely dissolved. The label suggests beginning to drink one half hour prior to exercise and continuing during and after the workout, while also saying to use as directed by a healthcare practitioner or as a dietary supplement. Mixing options listed include stirring with a spoon, shaking in a shaker, or blending in a conventional blender. Because the product is purposely unsweetened and unflavored, the label suggests mixing it into flavored or unflavored yogurts, fresh or frozen fruits, nonfat milk, coconut shavings, mixed nuts, or other favorite ingredients. Structure and function statements say the product helps stimulate protein synthesis to build muscle, provides support against muscle loss that normally occurs during the natural aging process, and supports healthy blood sugar levels, endurance, energy and muscle recovery following physical activity. The label also suggests stacking Fusil with other AjiPure amino acids or with Fusi-BCAA for an added boost to muscular performance and development. Seals and certifications listed include BSCG Certified drug free, Certified Vegan, OU kosher, laboratory tested, packaged in the USA, and cGMP compliance. The label notes net contents of 340 grams (12 oz) and a tamper resistant safety seal. It advises consulting a physician before use if pregnant, nursing, taking medication, or having any medical condition, and it says to keep the product out of the reach of children. Storage advice is to keep it in a cool, dry place. The FDA disclaimer states that the statements have not been evaluated by the Food and Drug Administration and that the product is not intended to diagnose, treat, cure or prevent any disease. The product is distributed by Ajinomoto North America, Inc., Raleigh, NC, and the label is dated from the NIH database entry in December 2017.
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Study, Trial or Testing Result Summary
Members Only24 human studies · 10 improved
This product gives 3 grams of leucine a day, above the 2 grams that worked in studies. The strongest positive results come from leucine-rich protein supplements, not leucine by itself. A pooled analysis of six trials in 699 older adults with age-related muscle loss found leucine-rich protein supplements improved strength, muscle mass and performance [1]. A 13-week trial in 380 older adults found a whey drink enriched with leucine and vitamin D added a little more muscle and improved a chair-stand test, but not grip strength [2]. A larger pooled analysis of 1133 older adults reported gains in grip, muscle mass and walking speed, but the authors rated the evidence low quality [3]. Trials of leucine on its own were mostly disappointing. In 200 frail older adults doing strength training for 16 weeks, leucine did no better than placebo [4]. In 36 midlife women doing strength training, 5 grams daily for 10 weeks added nothing to muscle or strength [5]. A review concluded leucine alone did not help, while leucine combined with protein did [6]. Since this product is plain leucine, the evidence that it builds muscle by itself is weak and mixed. Animal and cell studies are never counted.
See all 24 studies →Hide the studies
- Across 49 trials of 1863 healthy adults doing resistance training for at least 6 weeks, protein supplements modestly increased strength, lean mass and muscle size compared with control; this was about protein generally, not leucine alone.A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-i…
- Across ten randomized trials and one prospective study of 1133 older adults with sarcopenia, leucine improved handgrip, limb muscle mass and walking speed compared with placebo, though the authors rated the evidence as low quality.Effects of Leucine Supplementation in Older Adults with Sarcopenia: A Meta-Analysis.
- Across six randomized trials of 699 older adults with sarcopenia, leucine-rich protein supplements improved muscle strength, mass and performance compared with control groups.Effects of leucine-rich protein supplements in older adults with sarcopenia: A systematic review and meta-analysis of ra…
- In three trials of 637 patients with sarcopenia, a whey protein, leucine and vitamin D combination increased limb muscle mass, but strength and function improved only when combined with an exercise program.Effects of Whey Protein, Leucine, and Vitamin D Supplementation in Patients with Sarcopenia: A Systematic Review and Met…
- A systematic review of studies in adults aged 50 and over with sarcopenia found that essential amino acid supplements containing about 2.5 g of leucine showed some improvement in muscle mass and function, though nutrition study results overall were inconsistent and few in number.Prevalence of and interventions for sarcopenia in ageing adults: a systematic review. Report of the International Sarcop…
- A review of 23 studies found leucine or leucine-enriched protein (1.2 to 6 grams of leucine daily) was well tolerated and improved lean muscle mass in older people with sarcopenia, while strength results were mixed.Beneficial Effects of Leucine Supplementation on Criteria for Sarcopenia: A Systematic Review.
- A review of 15 systematic reviews in people aged 65 and older found leucine had a significant effect on muscle mass in elderly people with sarcopenia, though evidence quality was low to moderate.Nutritional interventions to improve muscle mass, muscle strength, and physical performance in older people: an umbrella…
- In a review of nine trials in healthy adults aged 50 and older, beef nutrients had an overall positive effect on wellbeing, but leucine specifically showed no effect.The potential role of beef and nutrients found in beef on outcomes of wellbeing in healthy adults 50 years of age and ol…
- A review of intervention studies in older adults with sarcopenia found leucine alone without exercise did not improve sarcopenia markers, but leucine paired with protein supplements was effective.Effect of supplementation with leucine alone, with other nutrients or with physical exercise in older people with sarcop…
- In 380 older adults with sarcopenia, a vitamin D and leucine-enriched whey protein supplement taken twice daily for 13 weeks did not improve handgrip strength more than control, but increased muscle mass by 0.17 kg more and improved the chair-stand test.Effects of a vitamin D and leucine-enriched whey protein nutritional supplement on measures of sarcopenia in older adult…
- In 200 pre-frail and frail older adults doing resistance training for 16 weeks, leucine supplementation did not improve muscle mass or function compared with placebo.Supplement-based nutritional strategies to tackle frailty: A multifactorial, double-blind, randomized placebo-controlled…
- In 140 older hospitalized adults with sarcopenia, a leucine and vitamin D enriched whey protein formula twice daily for 4 to 8 weeks during rehabilitation improved gait speed, muscle mass, and physical performance more than a control formula.Improving rehabilitation in sarcopenia: a randomized-controlled trial utilizing a muscle-targeted food for special medic…
- In 130 sarcopenic elderly people, 12 weeks of whey protein, essential amino acids including 4 grams of leucine, and vitamin D alongside exercise increased fat-free mass and grip strength and lowered an inflammation marker compared with placebo plus exercise.Whey protein, amino acids, and vitamin D supplementation with physical activity increases fat-free mass and strength, fu…
- In 96 people with Duchenne muscular dystrophy followed for one year, oral leucine at 0.2 grams per kilogram daily produced no lasting therapeutic benefit compared with placebo, and early differences were attributed to a drop in the placebo group.Clinical investigation in Duchenne muscular dystrophy: IV. Double-blind controlled trial of leucine.
- In older adults with sarcopenia, whey and leucine supplementation after resistance training did not differ from training alone at the end of 24 weeks, but after a further 24 weeks without training, muscle mass and grip strength stayed higher in the supplement group.De-Training Effects Following Leucine-Enriched Whey Protein Supplementation and Resistance Training in Older Adults with…
- In 60 adults aged about 80 with sarcopenia, a 2-month medical food containing 2.5 grams of leucine, omega-3 fats and a probiotic increased lean limb mass, balance, walking and grip strength compared with placebo.Effectiveness of a Novel Food Composed of Leucine, Omega-3 Fatty Acids and Probiotic Lactobacillus paracasei PS23 for th…
- In 36 untrained midlife women over 10 weeks of resistance training, 5 grams of daily leucine added no benefit to fat-free mass, strength or hormone levels compared with placebo.Efficacy of L-leucine Supplementation Coupled With Resistance Training in Untrained Midlife Women.
- In 26 resistance-trained young men over 12 weeks, adding 1.5 grams of leucine twice daily to whey protein produced muscle and strength gains no different from adding HMB, and HMB was no more effective than leucine.Equivalent Hypertrophy and Strength Gains in β-Hydroxy-β-Methylbutyrate- or Leucine-supplemented Men.
- In 20 resistance-trained adults, adding leucine to carbohydrate drinks before and after leg squats did not reduce muscle damage markers or soreness over 72 hours and did not change squat performance compared with placebo.The effects of adding leucine to pre and postexercise carbohydrate beverages on acute muscle recovery from resistance tr…
- In 48 untrained adults doing supervised resistance training three times a week for 12 weeks, 2 grams of leucine from either whey or soy protein increased body weight, lean mass and leg strength, with no difference between the two protein sources.No Significant Differences in Muscle Growth and Strength Development When Consuming Soy and Whey Protein Supplements Mat…
- In 56 sarcopenic older adults, a whey and leucine supplement for 12 weeks did not change muscle mass or grip strength more than counselled protein intake, but it improved walking speed, especially in those under 75.Effects of adequate dietary protein with whey protein, leucine, and vitamin D supplementation on sarcopenia in older adu…
- In 142 malnourished patients followed for 3 months, those taking a leucine-enriched supplement improved phase angle and rectus femoris muscle thickness more than those taking a standard supplement, though the study was observational and groups differed.Nutritional impact of leucine-enriched supplements: Evaluating protein type through artificial intelligence (AI)-augment…
- In 8 obese men with type 2 diabetes and 12 controls, a single 20-gram essential amino acid dose raised muscle protein synthesis similarly in both groups, but the diabetes group showed a blunted cell-signaling response, so the study does not show muscle loss is explained by impaired feeding response.Anabolic resistance does not explain sarcopenia in patients with type 2 diabetes mellitus, compared with healthy control…
- In nine men given testosterone for 12 weeks, muscle mass rose and muscle protein synthesis increased; this study tested testosterone, not leucine supplementation.Effect of testosterone on muscle mass and muscle protein synthesis.
Review Totals and Summary
Members Only9,100 reviews · 98% positive
I could find only a small amount of verified feedback specific to this exact product. Most of it is on Ajinomoto's own AjiPure page, which is a curated source. The Amazon page for the sibling Fusi-BCAA product and reviews of other pure leucine powders add some context. The few Fusil reviews describe the unflavored powder as convenient but not pleasant to taste on its own. One buyer adds it to daily smoothies because that is an easy way to take it and hides the taste, which he says isn't very good. That reviewer also looks forward to a flavored version for use on the golf course. This is consistent with the lemon and fruit punch versions that were later released. Another reviewer is a 57-year-old longtime athlete. He is wary of supplements and chose Fusil after research to help maintain muscle as he ages, and he says he is satisfied. So the buyers who do comment tend to be older, health-conscious people who want to hold on to muscle. Reviews of the sister product Fusi-BCAA on Amazon praise the quality, the vegan sourcing and the fact that it blends easily with protein powder. Reviews of other unflavored leucine products, such as Nutricost and Myprotein, show the recurring themes in this category. Buyers like powders that mix easily and have a mild taste, and they use them in post-workout shakes. The common complaint is poor mixing and clumping, and a bitter taste when the powder is taken plain. Some buyers defend poor mixing as normal for leucine because it dissolves poorly in water. Ajinomoto's instantizing is meant to address this. Taken together, the themes are trust in the brand's purity and plant-based sourcing, an easy-to-mix powder, and a mildly bitter taste that people cover with smoothies or shakes. Independent evidence for felt results is thin. I found no reliable reviews reporting dramatic strength or recovery effects, and the sample is too small to judge reliability or side effects. The conclusions above should be treated as tentative.
Biohacker Summary
Members Only9 of 10 recommend it
Eight of the nine panelists who spoke about leucine, the main ingredient, recommend it, and one warns, while the last mainly says he uses it. Almost all of them take it for muscle, describing it as the signal that switches on muscle building, and several say needs rise with age. Doses cluster around 2 to 3 grams per meal, with some going to 3 to 5 grams per meal, one gram in a capsule for plant-based eaters, or 8 to 9 grams a day, and one panelist favors a dileucine form and another pairs it with whole protein powders or carbs. Cautions come up too: two say there is no need to supplement if you already eat enough high-quality animal protein, and two point to worries that high leucine could push growth signals tied to aging, plaque or disease, with one panelist now warning against high levels.
See all 9 biohackers →Hide the biohackers
Ben Greenfield · Leucine · recommends
- Describes leucine as the 'ignition' that turns on the signal for muscle protein synthesis, and that a sufficient dose is needed to hit the dose response and then have other essential amino acids to maintain the signal.
- States that leucine is the primary trigger for muscle protein synthesis and recommends an essential amino acid blend with about 40% leucine for maximum stimulation.
- Recommends pulsing with compounds like leucine for maintaining and building muscle and maximizing muscle protein synthesis.
- Recommends Dileucine as a next-generation supplement for muscle recovery and protein synthesis, stating it delivers 86% more leucine to muscles and triggers 60% more protein synthesis than regular leucine, especially when paired with exercise.
- Dave Pascoe mixes up a concoction of different protein powders, leucine, and L-citrulline as a pre-workout drink.
- Discusses the role of leucine in boosting muscle protein synthesis on plant-based diets.
- Mixes leucine into a concoction of protein powders before his workout.
- Discusses a study that claimed escalating doses of leucine from animal-based protein could cause issues with monocytes and macrophages, potentially leading to atherosclerosis, but he refutes the generalizability of these findings to humans.
- Warns against using only leucine, as it induces only a short, transient response in muscle protein synthesis, which is not enough for long-term gains in muscle mass and function.
- Suggests that Urolithin A blends well with branched-chain amino acids like leucine and isoleucine, making them top things to stack with.
Dr. Eric Berg · Leucine · recommends
- The amino acid leucine is important for muscle growth, but getting sufficient protein is just as essential for maintaining muscle mass.
- Mentions that animal protein provides leucine, an amino acid beneficial for muscle building.
- Recommends getting enough leucine, a key amino acid for muscle growth, to help prevent and correct muscle loss.
- Explains that leucine is an essential amino acid that signals muscles to grow, and its requirements increase with age, making it important for maintaining muscle after menopause.
- Mentions that eggs contain all essential amino acids, including leucine, which is a key amino acid for building muscle.
- Notes that the amino acid leucine, found in animal protein, stimulates insulin.
- Notes that red meat contains leucine, an amino acid that triggers the synthesis of muscle.
- Explains that leucine is essential for muscle growth and that plant-based proteins often lack sufficient amounts of it.
- Notes that leucine is a potent stimulus for muscle production and is often low in plant-based foods.
- Highlights leucine as an essential amino acid that has been found to stimulate muscle growth and prevent muscle loss, making it good for muscle atrophy.
Thomas DeLauer · Leucine · recommends
- Identifies leucine as the primary trigger for the mtorc1 pathway, which is the master switch for muscle protein synthesis, and recommends 2 to 3 grams per meal for those under 40, and 3 to 4 grams for those over 40.
- Explains that leucine is important for muscle, with beef, whey, milk, and sardines clearing the 2-3g leucine threshold per meal, and that the threshold increases with age.
- States that leucine is what flips the switch for muscle protein synthesis, and that adding leucine and essential amino acids to a small dose of whey can match the effect of a full 25-gram dose of protein.
- Notes that leucine, an important amino acid for muscle growth, activates mTOR signaling after exercise, triggering the first step in building new muscle, and that leucine plus carbs together have the strongest signaling effect.
- Recommends taking 3 to 5 grams of leucine with meals, especially for older individuals who may struggle to meet minimum protein requirements, as it can help preserve muscle and increase muscle protein synthesis.
- Recommends protein sources that are high in leucine as a '401k of your fat burner' because they lead to more metabolically active lean tissue, especially for people dropping weight.
- Explains that leucine skyrockets mTor and phosphorylates P7S6K, which is exactly what one wants to be activating, especially post-workout but throughout the day if trying to build muscle and recover.
- Notes that leucine, found in whey protein, is highly anabolic and can help add muscle even without significant resistance training, which takes stress off the liver.
- Advises considering the leucine content of proteins and the ileal digestibility to maximize protein absorption for muscle growth.
- Notes that mTor is activated by branch chain amino acids, particularly leucine, and that higher circulating leucine generally leads to higher mTor activity.
Dr. Rhonda Patrick · Leucine · recommends
- Notes that foods high in leucine are going to really support muscle protein synthesis.
- Explains that Leucine is the critical signal driving robust activation of mTOR, which plays key roles in skeletal muscle growth by driving muscle protein synthesis and recovery, but also notes a study suggesting Leucine might activate mTOR in the vascular system, promoting plaque buildup.
- Highlights that leucine is an amino acid with strong signaling properties, stimulating the mTOR pathway and setting off the anabolic cascade for muscle protein synthesis.
- Mentions that leucine, a branched-chain amino acid, and other essential amino acids may be partially protective against declines in muscle mass, but not entirely effective against strength declines.
- Discusses leucine as an amino acid that kick-starts the muscle-growth process, noting that 2 to 3 grams may be important for older individuals to kick-start that process, but does not recommend it as a supplement if consuming high-quality animal-based protein sources.
- Warns that leucine is extraordinarily bitter and requires food science to mask its taste. He also states that leucine supplementation should be a last resort, advocating for a food-first approach.
- Identifies leucine as a major activator of mTORC1, which is critical for muscle protein synthesis.
- Notes that leucine is the highest affinity amino acid sensor for mTORC1, explaining why branched-chain amino acids, particularly leucine, are used to enhance muscle growth or prevent degradation during exercise. He believes 5 grams during a workout is probably not harmful.
Dr. Mark Hyman · Leucine · recommends
- Dr. Mark Hyman, agreeing with the guest, highlights leucine as a primary amino acid important for muscle protein synthesis.
- States that leucine is important for muscle health and is the rate-limiting amino acid for turning on the switch that starts muscle building.
- Recommends leucine, an amino acid, for making muscle.
- Highlights leucine as an essential amino acid that is nearly highest in protein sources and acts as a unique amino acid for metabolic signaling, like a switch that turns on muscle building.
- States that high amounts of leucine, an amino acid mostly found in animal protein, are needed to activate the switch to turn on muscle building, specifically about 2.5 grams per serving.
- Warns that leucine, which is much higher in animal protein, is the rate-limiting step for building muscle, and without 2.5 grams in a protein meal, the switch to build muscle won't be turned on.
- Explains that leucine is very low in plant proteins and is necessary to trigger protein synthesis, which is critical for building muscle.
- Mentions that leucine is important for building muscle and that some plant proteins are 'jacked up' with extra amino acids and leucine, citing an example of a plant protein with 2.5 grams of leucine.
- Recommends supplementing with leucine, an amino acid critical for activating muscle synthesis, especially for those on a vegan diet, as plant proteins are typically low in it.
- Recommends eating for leucine, an amino acid that comes in the right amounts to feed skeletal muscle.
Andrew Huberman · Leucine · recommends
- Suggests that adding free leucine, perhaps one gram in a capsule with a normal meal, can significantly boost protein synthetic response, especially for plant-based individuals.
- Suggests that leucine, because it triggers cellular growth by activating the mTOR pathway, is actually pro-aging, similar to growth hormone and testosterone, offering immediate benefits at the expense of long-term health.
- Andrew Huberman explains that leucine is an essential amino acid important for inducing muscle protein synthesis, and it is found in high levels in sources like whey protein, beef, chicken, and eggs.
- Discusses leucine.
- States that leucine is uniquely stimulating to skeletal muscle and recommends consuming closer to 9 grams of leucine per day, which is two to three times the RDA, for optimal muscle health.
- Notes that leucine, isoleucine, and valine, which are branch chain amino acids, make insulin go up.
- Explains that leucine is almost exclusively responsible for increasing muscle protein synthesis when protein is consumed, but supplementing with leucine does not make people more muscular because muscle building involves both synthesis and degradation.
- Suggests that leucine, by triggering cellular growth through the mTOR pathway, could be pro-aging, and that maximizing muscle growth through such supplements might come at the expense of long-term health.
- Huberman states that the amino acid leucine is vital for cell growth, including muscle growth, due to its relationship with the mTOR pathway, and suggests ingesting it early in the day for maintaining or increasing muscle mass.
- Clarifies that Leucine, an amino acid, is important for muscle building, muscle growth, and strength, distinguishing it from Lutein.
Dave Asprey · Leucine · warns
- States that very low levels of leucine are probably promoting high levels of protection against aging and diseases, but also promoting frailty, and high levels of this amino acid could be a risk for developing a number of diseases.
- Recommends ensuring enough Leucine, specifically two and a half grams, to activate muscle protein synthesis, otherwise consumed protein may not be effective.
- States that 2.5 grams of leucine are needed in a meal to activate mTOR and stimulate muscle synthesis.
- Recommends consuming leucine, which preserves body muscle and is found in higher amounts in animal foods.
Peter Attia · Leucine · recommends
- States that leucine is critical for muscle protein synthesis and recommends around 8 or 9 grams a day for optimal muscle health.
- Recommends two to three grams of leucine a day for muscle health, with optimal health probably around eight or nine grams.
- Recounts a story where a vegan doctor chastised him for suggesting ingesting five grams of leucine during a workout due to its negative effect on mTOR and potential link to cancer, which Peter Attia found amusing.
- Warns that there is no benefit to supplementing leucine specifically if one is already consuming enough high-quality protein, and notes that leucine tastes horrible.
- Mentions that estimations suggest two to three grams of Leucine in a meal will induce a rapid increase in circulating Leucine, stimulating muscle protein synthesis.
- Highlights that leucine content is an important factor in the anabolic response, and adding free leucine to casein can increase its anabolic effect.
- Recommends tracking amino acids and ensuring 2 to 4 grams per serving of leucine for muscle mass.
- Discusses experiments on Leucine and its effect on muscle protein turnover and fat metabolism.
- Mentions Leucine as one of the four signals that regulate mTOR, which is involved in protein synthesis.
- Explains that leucine binds to a protein called sestrin, which acts as its receptor, and the crystal structure shows how leucine is nestled in a small pocket, making it difficult to mimic its anabolic effects with other molecules.
Siim Land · Leucine · uses
- Despite high protein and whey intake, Siim Land's leucine levels remain low, hovering around 70, which he attributes to increased muscle mass and the body fighting infection.
- States that leucine is associated with longevity, and most studies indicate that higher levels are important for longevity.
- Mentions that leucine, an essential amino acid, acts as a signal for muscle protein synthesis, though not as strong as resistance training.
- Siim Land, agreeing with the guest, states that 2.5 grams of Leucine per meal maximizes anabolic protein synthesis in the muscle, ensuring muscle tissue maintenance.
- Identifies leucine as an essential amino acid that is most responsible for increasing mTOR activation and muscle protein synthesis, linking it to protein intake, aging, and cancer.
- Recommends consuming at least 2.5 grams of leucine to reach the optimal intake for muscle protein synthesis.
- Explains that leucine is a critical amino acid for turning on MTOR and promoting protein synthesis, and while it is pro-growth, its impact on aging is complex.
- Explains that leucine is the most anabolic amino acid responsible for mTOR activation, with a threshold of around 2 to 3 grams.
- States that leucine-rich foods like eggs and dairy are the highest sources of leucine, which activates mTOR.
- States that leucine specifically activates mTOR C1 the most and promotes muscle protein synthesis.
RAL Summary
Members OnlyTier 4 for Muscle and Strength
The tier 2 grade rests on meta-analyses of leucine-rich protein supplements rather than leucine alone, the trials and review of leucine on its own found no benefit, and the 9100 review count conflicts with the review research finding only a few reviews of this exact product. So it is graded Tier 4, lower than the rules alone gave.
- Emerging: not enough evidence to rank higher yet.
Where the evidence disagrees: 6 of the 24 human studies found no effect.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Musculoskeletal system
Combine with: For muscle building, pair it with whey or plant protein to supply the full essential amino acid profile, creatine monohydrate for strength and power output, and vitamin D3 with magnesium for muscle function and recovery. Beta-alanine or citrulline can support endurance and training volume, and omega-3 fatty acids may help manage exercise-related inflammation. If the user truly wants cellular and DNA repair support, they should use a separate product such as NMN or NR with quercetin, resveratrol, or pterostilbene, plus CoQ10 and alpha-lipoic acid. Consult a healthcare provider before starting a new regimen.
Possible side effects: No major side effects reported in the studies. Reviewers say the plain powder tastes unpleasant or bitter and can clump when mixed.
Supplement Facts
L-Leucine 3 g
| L-Leucine | 3 g | † |
Other ingredients: Lecithin.
Directions: Suggested Dose: Use as directed by a healthcare practitioner or for best results as a dietary supplement, mix one level scoop with 6-10 fl. oz of your favorite beverage. Stir, shake or blend well for 20-30 seconds or until Fusil powder is completely dissolved. Begin drinking one half hour prior to exercise and continue drinking during and after your workout. Stir, Shake Or Blend: Fusil is versatile in order to meet your specific needs. Fusil may be mixed by stirring with a spoon, by shaking in a shaker or by blending in a conventional blender. Pure & Unflavored: Fusil is purposely unsweetened and unflavored so that you may mix it into an array of beverages or workout preparations. For improved taste, try mixing or blending Fusil with flavored or unflavored yogurts, fresh or frozen fruits, nonfat milk, coconut shavings, mixed nuts or any other favorite ingredients. For delicious recipe inspirations visit www.ajipure.com. Fusil Stacks Up: Try staking Fusil other AjiPure amino acids or other preferred supplements such as protein shakes and various powder preparations for an even more powerful boost. For an added boost to muscular performance and development, try stacking Fusil with Fusi-BCAA.
Barcode (UPC) 071757600287 · Label source: NIH label database · Report a label change
Other sizes and barcodes: 198 Gram(s); 7 Oz(s), UPC 0 71757 60027 0 (not checked yet)
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Graded November 10, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.
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