Clinically Dosed Supplements

USP Verified for purity, potency, and dissolution — the gold standard for vitamin C. Nature Made is the #1 pharmacist-recommended brand. At $0.06/serving, it delivers unbeatable value. One tablet provides 1,000mg of pure ascorbic acid.

Algae-derived calcium provides a whole-food mineral matrix with 73 trace minerals naturally present in the algae. Includes both vitamin D3 (1,600 IU) and vitamin K2 (MK-7) — the two most important cofactors for directing calcium to bones. Also includes magnesium, strontium, and vanadium for comprehensive bone support. Non-GMO Project Verified and third-party tested.

The only product in the category delivering both MK-4 and MK-7 forms. MK-7 provides long-acting baseline coverage (72-hour half-life), while MK-4 offers tissue-specific benefits in brain, pancreas, and reproductive organs. Soy-free formulation in an oil-based softgel for fat-soluble absorption.

Sun Chlorella's patented DYNO-Mill process pulverizes 90% of the cell wall without heat or chemicals, preserving heat-sensitive CGF and chlorophyll. This is the gold standard for chlorella processing — no other brand matches this method.

The category leader with over 100,000 Amazon reviews and a 4.6-star average. Sourced from grass-fed, pasture-raised bovine hides. Provides a full 20g of hydrolyzed collagen per two-scoop serving with 18g protein. Dissolves cleanly in hot or cold liquids. Includes hyaluronic acid and vitamin C in the original formula to support collagen synthesis.

Chelated magnesium glycinate with high bioavailability at an excellent price point. Glycinate absorbs 4-5x better than oxide, and this product delivers a full clinical dose at $0.14/serving. Over 74,000 Amazon reviews with a 4.5-star average.

Delivers the standard clinical 600mg dose in a clean vegetarian capsule. NOW Foods is GMP certified with rigorous third-party testing. At $0.10/serving, it offers outstanding value — among the lowest cost per serving in the NAC category. Over 30,000 Amazon reviews with a 4.6-star average. Simple, effective, trusted.

The gold standard in astaxanthin supplements. BioAstin is grown on the Kona coast of Hawaii in controlled open-pond photobioreactors, producing pharmaceutical-grade Haematococcus pluvialis. With 16,700+ reviews and decades of market presence, this is the most trusted and validated astaxanthin supplement available. Farm-direct sourcing eliminates supply chain contamination risk.

Grown on the Kona Coast of Hawaii for over 40 years in a biosecure facility using fresh Hawaiian aquifer water and year-round sunshine. Nutrex Hawaii is the gold standard for spirulina purity — their facility produces spirulina with consistently high phycocyanin content and undergoes rigorous heavy metal testing well below FDA limits.

Greenbow uses low-temperature drying to preserve the heat-sensitive enzymes and flavonoids (quercetin, kaempferol) that make bee pollen valuable. USDA Organic certification ensures the bees foraged in pesticide-free areas — critical since pollen concentrates environmental contaminants. Triple-certified (Organic/Kosher/Halal) with 1% of proceeds donated to the Planet Bee Foundation.

The brand that popularized the ancestral organ supplement category. Sourced from New Zealand grass-fed cattle raised without hormones, pesticides, or GMO feed. Founder-led company with deep commitment to the nose-to-tail philosophy. The premium price reflects New Zealand sourcing and rigorous quality standards.

Stand-alone wildcrafted Chondrus crispus with a published Certificate of Analysis and heavy metal testing. Double Wood is one of the few brands that tests and discloses contaminant levels. 180 capsules provide a full 90-day supply at clinical dosing.

Delivers the full clinically studied 320mg dose of liposterolic extract standardized to 85-95% fatty acids in a single softgel. NOW Foods operates GMP-certified facilities with third-party testing. Excellent value at $0.18/serving with 90 softgels per bottle.

NOW Foods is a GMP-certified, NPA A-rated manufacturer with decades of quality history. This product provides standardized 10-HDA content in a convenient freeze-dried softgel, backed by Non-GMO and Kosher certifications.

Provides an optimal 1mg dose — research shows 0.5-1mg is sufficient for most adults and closely mimics the body's natural melatonin production. Life Extension is a research-focused brand with 40+ years of supplement expertise. Clean formula with no fillers or additives.

Full 8g citrulline malate (2:1) — the exact dose and form used in clinical trials. Every ingredient dose is disclosed on the label — no proprietary blends. Also includes beta-alanine, betaine, and other evidence-based performance ingredients. One of the most transparently dosed pre-workouts available.

The category-defining mushroom coffee product with unmatched social proof — 20K+ reviews at 4.4 stars — and transparent sourcing from a single Honduran co-op. Lion's Mane + Chaga at 250mg each meets traditional-use ranges.

Sovereign Laboratories pioneered liposomal delivery for colostrum (their LD Technology), which coats colostrum particles in phospholipids to protect immunoglobulins through stomach acid. This results in more IgG reaching the intestinal lining where it provides the most benefit. First-milking, low-temperature processed colostrum from pasture-raised cows. Over 15 years of market presence.

Delivers a potent 326mg EGCG per capsule from a 98% polyphenol standardized extract — one of the highest concentrations available. Decaffeinated, making it suitable for caffeine-sensitive individuals and evening dosing. Life Extension is a research-driven brand with rigorous quality standards. Single capsule provides a near-clinical dose.

Cold-pressed and hexane-free with a verified 3:1 omega-6:omega-3 ratio and meaningful GLA content. NOW Foods holds NPA A-rated GMP certification, making this the most quality-assured option. Keto-friendly and Non-GMO verified.

Uses the patented affron extract standardized to 3.5% Lepticrosalides — the most clinically studied saffron extract with multiple published RCTs showing mood and sleep benefits at just 28mg daily. Nootropics Depot performs rigorous in-house testing with published COAs.

The most clinically studied black cohosh product worldwide — Remifemin's iCR extract has been evaluated in over 20 clinical trials involving more than 11,000 women. Standardized to triterpene glycosides for consistent potency. Used and recommended by healthcare practitioners in Europe for decades.

The most comprehensive prostate formula available, combining pygeum, saw palmetto, beta-sitosterol, nettle root, and lycopene — all at clinically relevant doses. Each ingredient targets different mechanisms: 5-alpha-reductase inhibition, anti-inflammatory action, and antioxidant support. Life Extension is known for research-backed formulations.

Nootropics Depot offers the most rigorously standardized tongkat ali on the market at 10% eurycomanone — five times higher than the typical 2% standardization. This means a 200mg capsule delivers 20mg of eurycomanone, equivalent to 1,000mg of a standard 2% extract. Nootropics Depot is known for industry-leading in-house analytical testing with published certificates of analysis.