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The only product in our lineup standardized to a specific isoflavone content — delivers 40mg isoflavones per capsule, matching clinical study doses. Solaray's PhytoEstrogen formula is designed specifically for menopausal support. Lab-verified potency ensures consistent results.

Uses the patented LJ100 extract, which is the most clinically studied form of tongkat ali. LJ100 is standardized to 22% eurypeptides and 40% glycosaponins — the exact specification used in the Talbott et al. (2013) and other key clinical trials. If your goal is to replicate the results from published research, this is the closest match available.

Combines the clinically validated affron extract with USP Verified status — the gold standard for supplement testing. Nature Made is the #1 pharmacist-recommended brand. Excellent value for a branded, third-party verified saffron product.

Earthrise operates the world's largest spirulina farm in the Sonoran Desert of California, producing spirulina since 1982. Their ISO 9001:2015 certified facility provides complete traceability from pond to tablet. California's strict agricultural regulations add an extra layer of quality assurance that imported spirulina cannot match.

Life Extension 7-Keto DHEA Metabolite – Crank Up Your Fat-Burning Furnace – Non-GMO – Gluten-Free – 100 Mg – 60 Vegetarian Capsules provides 7 keto dhea in a convenient form.

NOW Foods Supplements, 7-Keto (DHEA Acetate-7-one) 100 mg, Weight Management*, 60 Veg Capsules provides 7 keto dhea in a convenient form.

NOW Foods Supplements, 7-Keto (DHEA Acetate-7-one) 25 mg, Weight Management*, 90 Veg Capsules provides 7 keto dhea in a convenient form.

Pendulum is the pioneer in commercially available Akkermansia supplements. They hold exclusive licensing on specific Akkermansia strains and use anaerobic manufacturing processes designed to preserve viability. The only standalone Akkermansia product from a company that has conducted its own clinical trials.

Apigenin, 100mg Per Serving, 240 Capsules – Raw Plant Extract from Chamomile Flower – Active Bioflavonoids & Antioxidants – Sleep & Relaxation Supplement – Non-GMO provides apigenin in a convenient form.

Uses SerinAid — the most clinically studied branded phosphatidylserine ingredient, used in many of the landmark PS cognition studies. Soy-derived SerinAid has the longest track record of safety and efficacy data. Softgel format with lipid base for optimal absorption.

Customer rating of 4.4★ flags quality/efficacy concerns versus higher-rated alternatives on this page.

Peak Performance delivers a full 500mg NMN dose at one of the lowest price points in the category. Third-party tested for purity and potency. Clean formula without unnecessary fillers. Strong customer reviews for consistent quality at a fraction of premium brand pricing.

Momentous Alpha GPC Supplement - Cognitive Health & Function Support - NSF Certified for Sport - GMO- & Gluten-Free - 60 Servings provides alpha gpc in a convenient form.

Momentous Apigenin Supplement - 50 mg per Capsule - NSF Certified for Sport - 60-Count provides apigenin in a convenient form.

DoNotAge positions itself as a transparency-first longevity brand, providing detailed third-party testing for every batch with >99% purity claims. Their NMN is enzymatically produced and tested for heavy metals, solvents, and microbial contamination. Full 500mg dose matches clinical trial protocols.

HumanN is the leading beet root brand in the US, developed with University of Texas Health Science Center research. Patented concentration process preserves nitrate content. Clinical study showed improved circulation in healthy adults. Black cherry flavor is one of the best-tasting beet root products available.

Dedicated nitric oxide supplement (no caffeine or other stimulants) with a clinical 7g L-citrulline dose plus 1.5g Nitrosigine (inositol-stabilized arginine silicate) for enhanced NO production. Great for evening workouts or stimulant-sensitive individuals. Transparent labeling.

The only major US brand focused exclusively on moringa. Sources from women-led farming cooperatives in West Africa and Haiti. 5g per serving meets the clinical study range, and USDA Organic plus Non-GMO verified.

Canada's number-one hemp food brand with decades of hemp expertise. Sustainably farmed Canadian hemp provides 780mg of omegas per softgel, including both GLA and the rarer stearidonic acid (SDA). Manitoba Harvest is a hemp-focused company, not a generic supplement maker.

Peak Performance sources its thyroid glandular exclusively from grass-fed New Zealand cattle — a country with strict BSE-free livestock regulations. The thyroid tissue is freeze-dried to preserve peptides and cofactors. Clean formula with no fillers, suitable for paleo and ancestral dietary approaches.

Highest dose per serving on our list at nearly 2g per 3-capsule serving. Nature's Way is one of the most trusted herbal supplement brands with TRU-ID certification — DNA-based authenticity testing that verifies the plant species used. Established brand with wide retail availability. Delivers a robust clinical dose.

The cleanest beef protein on the market — just beef protein isolate, cocoa, coconut sugar, and Himalayan salt. 100% grass-fed, pasture-raised sourcing verified by the brand. Collagen-free formulation (pure beef isolate, not hydrolyzed collagen labeled as "beef protein"). Founded by CrossFit athletes with a strong community following.

Lives up to its name — every single ingredient dose is disclosed on the label, no proprietary blends. You can verify that spirulina, chlorella, and other key ingredients are at meaningful doses rather than pixie-dust levels. Third-party tested with published COAs. Includes prebiotics for gut health.

USP Verified for purity, potency, and dissolution. The #1 pharmacist-recommended B12 supplement. At $0.05/serving, it is the most affordable option. Cyanocobalamin is well-studied and effective for most people who can convert it to active forms.