Source Naturals supplements, graded by the human studies
We graded 2 Source Naturals 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 Source Naturals makes, tests or sells its products, and we sell no supplements. Educational, not medical advice.
The Source Naturals products we graded
Members Only2 products, strongest evidence first
What Source Naturals products were graded for
Each goal links to its page, with every product graded for it
| Goal | Source Naturals products |
|---|---|
| Blood Pressure | 1 |
| Thyroid Health | 1 |
Read more
Our articles on these goals
- How to Lower Diastolic Blood Pressure for LongevityArticle · Sep 17, 2026
- DASH Diet for High Blood Pressure: What It Lowers, What to Eat, and How to StartArticle · Sep 19, 2026
- How to Lower Blood Pressure NaturallyArticle · Jun 27, 2026
Questions people ask
Members Only
Is Source Naturals a good brand?
We grade products, not brands, and we sell none. Of the 2 Source Naturals products we graded, 2 are Tier 2 (Researched). 2 are top-ranked for the goals they were graded for. Each product's grade, the studies behind it and its label are on its own page.
Which Source Naturals products have the strongest evidence?
By our grades: Guggulsterones 37.5 mg - 60 Tablets (Tier 2, graded for thyroid health); Magnesium Chelate Complex 100 mg (Tier 2, graded for blood pressure). A product's grade is for the goal it was graded for, at the dose on its label.
How does Reverse Age Lab grade Source Naturals 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 Source Naturals makes, tests or sells its products, and we are not affiliated with Source Naturals.
Can I take Source Naturals 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. Source Naturals 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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