Simple-Organics D-Aspartic Acid 3000 mg Review
This eBay listing for the Simple-Organics D-Aspartic Acid Supplement, Energy Support Dietary Pills, is marked as ended because the item sold out, and the listing closed on Monday, August 31 at 2:58 AM. The item is listed as New, with the price shown as US $33.99. The gallery images describe a white and teal bottle with a silver cap, a label stating 3000 MG per capsule, a supplement facts panel, a certificate of analysis, and a dosage panel. The seller is supp-delight, shown with 98% positive feedback and 582 feedback ratings, and the seller account was registered in April 2025. The listing gives the brand as Simple-Organics and the MPN as 046708995811, while the UPC and EAN fields both read Does not Apply. Shipping is from multiple locations in the United States, and the page says it does not ship to Japan. Returns are accepted within 30 days, with return shipping paid by the seller. The page contains no ingredients list, serving count, written product description, or product star ratings, so the remaining details cannot be confirmed from this text.
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Study, Trial or Testing Result Summary
Members Only8 human studies · 2 improved
Most controlled trials find that D-aspartic acid does not raise male hormones. This product gives 3 grams a day, the same dose that showed no effect on testosterone compared with placebo in several trials. In trained men, 3 grams daily for 4 weeks did not change testosterone, luteinizing hormone, strength or body composition [1]. In another trial, 3 grams for 2 weeks did nothing, and 6 grams lowered total and free testosterone [2]. Six grams daily for 12 weeks did not change testosterone, though estradiol fell 16% [3]. Two-week trials in climbers [4] and boxers [5] also found no effect. A 2024 review found that most testosterone boosters, including this one, did not beat placebo [6]. An older 2009 study of 43 men over 12 days reported higher luteinizing hormone and testosterone. A 2025 study in 48 infertile men saw testosterone rise, but it used a mixed product and compared the men only with their own starting levels, so it does not show what D-aspartic acid alone does. Animal and cell studies are never counted.
See all 8 studies →Hide the studies
- A review of 52 studies of testosterone boosters, including 2 on D-aspartic acid, found that most boosters, D-aspartic acid among them, did not raise total testosterone compared with placebo.Do "testosterone boosters" really increase serum total testosterone? A systematic review.
- In infertile men, 2660 mg of D-aspartic acid combined with ubiquinol and zinc daily for 3 months improved sperm motility and raised total testosterone compared with before treatment, but the combination makes it unclear what D-aspartic acid did alone.Evaluation of in vivo supplementation of 2660 mg D-aspartic acid and 200 mg ubiquinol and 10 mg zinc on different semen …
- In 24 resistance-trained men, 6 g of D-aspartic acid daily for 2 weeks lowered total and free testosterone, while 3 g had no significant effect compared with placebo.Three and six grams supplementation of d-aspartic acid in resistance trained men.
- In 22 resistance-trained men, 6 g of D-aspartic acid daily for 12 weeks did not change total or free testosterone compared with placebo, though estradiol fell 16%.The effects of d-aspartic acid supplementation in resistance-trained men over a three month training period: A randomise…
- In 16 male climbers, 3 g of D-aspartic acid daily for 2 weeks did not change testosterone, free testosterone or luteinizing hormone compared with placebo.Short-Term d-Aspartic Acid Supplementation Does Not Affect Serum Biomarkers Associated With the Hypothalamic-Pituitary-G…
- In 16 male boxers, 6 g of D-aspartic acid daily for 14 days during simulated altitude exposure did not affect testosterone, luteinizing hormone, cortisol or blood counts compared with the control group.The Effects of Six-Gram D-Aspartic Acid Supplementation on the Testosterone, Cortisol, and Hematological Responses of Ma…
- In resistance-trained men, 3 g of D-aspartic acid daily for 28 days with heavy training did not change total or free testosterone, luteinizing hormone, muscle strength or body composition compared with placebo.D-aspartic acid supplementation combined with 28 days of heavy resistance training has no effect on body composition, mu…
- In 23 men given D-aspartate daily for 12 days versus 20 given placebo, luteinizing hormone and testosterone levels rose.The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and ra…
Review Totals and Summary
Members Only2,442 reviews · 83% positive
My search returned limited review text. Only a handful of individual reviews were readable, along with sentiment summaries from review aggregators. The themes below are therefore indicative and not exhaustive. The strongest theme is practical, noticeable performance support. One US customer is a martial artist who returned to training after a year off. He described taking it in cycles of 12 days on and 5 off. He reported feeling stronger, recovering faster and having more endurance and stamina. He said he finished a workout earlier than usual during his second cycle. Other buyers of similar 3000 mg DAA products praise better concentration and focus. Some mention general energy and motivation, though that feedback came from comparable products and not this exact brand. A second theme is value and convenience. Customers like that the formula is clean, with no gluten, binders or fillers, and that it is vegan and non-GMO. Comparison sites also rank it first among DAA supplements on price per serving, at about $0.32. Third-party sellers report that the bottle arrives well packaged and on time. The complaints are less visible in the text I could read. An aggregator that analysed 426 reviews put about 92% as positive and about 7% as negative. It did not say what the negative reviews were about. From the broader category, the usual complaints are no noticeable effect, stomach upset, irritability or headaches, and the need to swallow 4 capsules per serving. Some users also feel the effect fades after the first cycle, which is why people cycle it. I could not confirm these complaints from Simple-Organics reviews specifically. Overall, buyers who like it describe subtle gains in drive, stamina and recovery, mostly from cycled use. Buyers who are disappointed seem to be those who expected a dramatic testosterone boost.
Biohacker Summary
Members Only4 of 10 recommend it
The panel is split on D-aspartic acid, the main ingredient here, and only five of the ten panelists spoke about it. Two recommend it, mainly to raise testosterone, and one of them also suggested 3 grams a day, about a teaspoon, for hair loss, paired with Myomin, and earlier paired it with Myomin to offset damage from a med. One panelist warns that it has been disproven for testosterone, alongside tribulus and fenugreek, and two others stayed neutral, noting only that it was once thought to boost testosterone or that the body can make NAD+ from aspartic acid. As a caution, one panelist once warned that aspartate from artificial sweeteners can damage nerve cells, though another said aspartic acid in an amino acid blend or protein powder is not a big deal.
See all 5 biohackers →Hide the biohackers
Dr. Rhonda Patrick · Aspartic Acid · warns
- States that D-Aspartic Acid, along with tribulus and fenugreek, has been disproven for its effects on testosterone.
Thomas DeLauer · Aspartic Acid · neutral
- Mentions D-Aspartic Acid as an ingredient that was thought to boost testosterone.
- Warns that aspartic acid, an excitatory component of aspartame, excites neurons to death by stimulating them excessively, leading to the creation of free radicals that kill off brain cells.
Dr. Eric Berg · Aspartic Acid · recommends
- Recommends D-Aspartic Acid as another good compound to help increase testosterone.
Siim Land · Aspartic Acid · neutral
- Notes that NAD+ can be synthesized from the amino acid aspartic acid.
Ben Greenfield · Aspartic Acid · recommends
- Recommends 3g/day (approximately 1 teaspoon) of D-Aspartic Acid for hair loss, to be combined with Myomin.
- Recommends D-Aspartic Acid combined with Myomin to mitigate damage caused by a med.
- Recommends D-aspartic acid for natural testosterone enhancement.
- Discusses D-Aspartic Acid in response to a listener's question about its effectiveness as a natural testosterone booster.
- Ben warns that aspartate, the base of aspartic acid found in artificial sweeteners like aspartame, is an excitotoxin that can damage nerve cells, but aspartic acid as part of an amino acid compound or protein powder is not a big deal.
- Ben warns that aspartic acid, also known as aspartate, is an excitatory neurotransmitter that at high dosage levels can cause excitotoxicity or damage to nerve cells in the brain.
- Ben recommends aspartic acid as a natural testosterone booster, noting studies show it can increase testosterone levels in men by stimulating glutamate receptors in the brain and upregulating RNA that produces a protein regulating sex hormone synthesis in the testes.
- Says he takes three grams of d'aspartic acid daily, using the Hard Rhino brand, for testosterone maintenance.
- Personally experiments with D-aspartic acid, taking 3 grams (about a teaspoon) of Hard Rhino powder every morning to boost testosterone levels, noting it doesn't need to be cycled.
- Recommends taking 3 grams (approximately 1 teaspoon) of D-Aspartic Acid per day, combined with Myomin, to help mitigate damage caused by a med.
RAL Summary
Members OnlyTier 5 for Hormone Balance for Men
The tier 2 grade counts a 48-man trial of a mixed product compared only against starting levels as a controlled D-aspartic acid trial, while six placebo-controlled trials and a review show D-aspartic acid does not raise testosterone. So it is graded Tier 5, lower than the rules alone gave.
- Not endorsed.
Where the evidence disagrees: 6 of the 8 human studies found no effect.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Endocrine system, Reproductive system
Combine with: For hormone support, D-Aspartic Acid is often paired with zinc (around 15-30 mg), magnesium, vitamin D3, and boron, which support normal testosterone production in men who are deficient. Ashwagandha (KSM-66) may help lower cortisol and support testosterone, and Tongkat Ali or fenugreek are sometimes added. If the goal is sexual function, add L-citrulline or L-arginine for nitric oxide and blood flow, Panax ginseng, and possibly Maca for desire. Cycling D-Aspartic Acid (for example 2-3 weeks on, then a break) is common because long use may blunt its effect. Men with cardiovascular, hormonal, or prostate conditions, or those on medications, should consult a clinician before use.
Possible side effects: One trial found that 6 grams a day lowered total and free testosterone, and another found that estradiol fell. No written reviews of this product could be read, so nothing is known about side effects reported by buyers.
Supplement Facts
D-Aspartic Acid 3000 mg
| D-Aspartic Acid | 3,000 mg | † |
Other ingredients: Vegetable Cellulose Capsule.
Directions: Suggested Use: Take 4 capsules daily, preferably with a meal, or as directed by a healthcare practitioner.
Barcode (UPC) 046708995811 · Label source: NIH label database · Report a label change
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Graded November 8, 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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