Shaklee supplements, graded by the human studies
We graded 2 Shaklee products against the human studies of their ingredients, the dose on each label and what buyers say in their reviews. Each grade belongs to the product and the goal it was graded for: we do not grade how Shaklee makes, tests or sells its products, and we sell no supplements. Educational, not medical advice.
The Shaklee products we graded
Members Only2 products, strongest evidence first
What Shaklee products were graded for
Each goal links to its page, with every product graded for it
| Goal | Shaklee products |
|---|---|
| Digestion and Bloating | 1 |
| Healthy Aging | 1 |
Read more
Our articles on these goals
- How to Improve Gut Health Naturally: Fiber, Foods and the Probiotic Strains With Human TrialsArticle · Sep 15, 2026
- Best Probiotic for Bloating: The Strains With Human Trials, and How to Choose OneArticle · Oct 27, 2026
- Probiotics for Gut Health: The Complete GuideArticle · Mar 17, 2026
Questions people ask
Members Only
Is Shaklee a good brand?
We grade products, not brands, and we sell none. Of the 2 Shaklee products we graded, 1 is Tier 3 (Reviewed) and 1 is Tier 4 (Emerging). None is top-ranked for its goal yet. Each product's grade, the studies behind it and its label are on its own page.
Which Shaklee products have the strongest evidence?
By our grades: +L Boost Lecithin (Tier 3, graded for healthy aging); Optiflora DI (Tier 4, graded for digestion and bloating). A product's grade is for the goal it was graded for, at the dose on its label.
How does Reverse Age Lab grade Shaklee products?
Each product is graded for a goal on the human studies of its ingredients at the dose on its label, what buyers say in their reviews and what our panel of ten biohackers has said. The grade belongs to the product. We do not grade how Shaklee makes, tests or sells its products, and we are not affiliated with Shaklee.
Can I take Shaklee supplements with my meds?
Some supplements can interact with meds. Members have every product checked against the meds in their Health Profile before it joins their protocol.
Educational, not medical advice. Grades come from human studies on PubMed, the dose on each label, store reviews we read ourselves and our biohacker panel, and are updated as new studies arrive. Shaklee is a trademark of its owner; Reverse Age Lab is not affiliated with it and sells no supplements. How we grade →
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