Clinically Dosed Supplements

Peak Performance delivers a full 200mg dose of paraxanthine in a clean, single-ingredient capsule without unnecessary stimulant stacking. No caffeine added, no proprietary blends — just pure paraxanthine for clean, focused energy. Third-party tested for purity. The best combination of effective dose and accessible pricing in this emerging category.

Combines a clinical dose of tongkat ali root extract with fadogia agrestis, a synergistic pairing that has gained popularity for testosterone and vitality support. The combination targets multiple hormonal pathways simultaneously — tongkat ali for cortisol reduction and free testosterone, fadogia for LH stimulation. Third-party tested with clean label formulation.

This is Sports Research's flagship collagen peptide value format. With 14,585 reviews at 4.7 stars, it is one of the most validated collagen powders available by pure volume of consumer feedback. The 11g dose per scoop sits in the clinically active range for skin elasticity and joint support. Three quality certifications (Keto, Paleo, Non-GMO) and third-party potency testing make this a trustworthy daily supplement. For consistent daily collagen users who prioritize value, mixing versatility, and bovine Type I and III peptides, this is the most compelling format in the Sports Research collagen lineup.

NSF Certified for Sport — the gold standard for competitive athletes subject to drug testing. Uses Creapure creatine. Trusted by professional sports teams and Olympic athletes.

The best value vitamin C on the market at $0.05/serving, with added rose hips providing natural bioflavonoids. NOW Foods operates GMP-certified facilities with rigorous quality control. Sustained-release tablet for gradual absorption throughout the day.

Delivers the full 10,000 IU upper tolerable limit dose of preformed retinol from fish liver oil in an easy-to-absorb softgel. At $0.04/serving, it offers unbeatable value. GMP-certified with third-party testing. NOW Foods has been a trusted manufacturer for 50+ years. Best for individuals with confirmed deficiency or poor beta-carotene conversion.

Uses patented FloraGLO lutein — the most clinically studied lutein brand, used in over 80 clinical trials including AREDS2. Provides a generous 25mg lutein dose (above the AREDS2 10mg), which may further increase macular pigment density. Excellent value at $0.25/serving with GMP certification.

Theracurmin uses nanoparticle technology to achieve up to 42x greater absorption than standard curcumin — backed by multiple pharmacokinetic studies. With 7,200+ reviews and a 4.8 star rating, this is one of the most validated turmeric supplements on Amazon. Peak Performance combines the Theracurmin form at a meaningful 600mg dose.

Suntheanine in a coconut oil softgel for enhanced absorption. Non-GMO Project Verified. The softgel format is ideal for stacking with coffee — the combination of L-theanine + caffeine is one of the most well-studied nootropic stacks, providing focused energy without jitters.

USDA Organic methylcobalamin in a convenient oral spray format — ideal for people who dislike swallowing pills. Sprays directly onto the oral mucosa for sublingual-like absorption. Whole-food based and certified vegan, organic, and Non-GMO. Raspberry flavor.

Delivers the highest dose per softgel (1250mg) with industry-leading 1600mcg astaxanthin — over 3x more than most competitors. The 255mg combined EPA+DHA per softgel is the strongest in this roundup. Third-party tested for purity and potency.

Delivers a clinical dose of 100mg hyaluronic acid per capsule at an excellent price point. GMP-certified facility with third-party testing. Simple, clean formula with no unnecessary additives. NOW Foods has 50+ years of supplement manufacturing experience.

Uses a bilayer sustained-release tablet that delivers NAC over 8 hours — providing steadier blood levels than standard-release capsules. May reduce the sulfur-related GI discomfort some people experience with immediate-release NAC. Includes molybdenum, a trace mineral cofactor for sulfur amino acid metabolism.

Delivers 250mg TUDCA per capsule — the standard starting dose for liver and bile flow support. Nutricost provides third-party tested supplements at competitive prices. Clean formula with minimal excipients. 60 capsules per bottle allows flexible dosing (1-2 capsules daily).

The coconut oil carrier makes this stand out — astaxanthin is fat-soluble and absorbs significantly better with dietary fat. By embedding it in organic coconut oil, Sports Research eliminates the need to take it with a meal. Full 12mg clinical dose, Non-GMO Verified, and 3,300+ reviews at a lower price point than BioAstin.

Full 600mg KSM-66 dose at roughly half the price of premium brands. Excellent value for a branded extract with clinical backing.

Delivers a generous 500mg dose standardized to 3% rosavins and 1% salidroside at just $0.14/serving — the best value in the category. GMP-certified manufacturing. One capsule provides a full clinical dose at the higher end of the therapeutic range.

Unique formula combines IFOS 5-Star fish oil with olive fruit polyphenols (equivalent to 4-6 tablespoons of extra virgin olive oil) and sesame lignans that protect DHA from oxidation. This Mediterranean-diet-in-a-capsule approach targets multiple inflammatory pathways simultaneously.

USDA Organic certified dandelion root in a clean capsule format with no fillers or artificial additives. Delivers a solid 1,500mg dose per 2-capsule serving at a competitive price point. Third-party tested for purity and potency, making it a reliable daily choice for liver and digestive support.

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.

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.

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.

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.