Brand comparison

Thorne vs Pure Encapsulations vs NOW Foods vs Nature Made: How the Top Supplement Brands Actually Score

Every "best supplement brands" article cites the same four names — Thorne, Pure Encapsulations, NOW Foods, Nature Made — and points at NSF and USP third-party certifications. Certifications are a floor, not a ranking. This is what those four brands actually score across our full product-integrity rubric: evidence quality, dose disclosure, manufacturing standards, safety, transparency, sustainability. Same rubric, same weighting, applied to every product from all four vendors we carry. Read the rubric →

Head-to-head summary

# Brand Avg score Scored Tier mix Top product
1 Thorne 81.7 6 of 6 2 Elite 4 Verified Thorne Basic Nutrients 2/Day · 89
2 Pure Encapsulations 76.4 13 of 13 12 Verified 1 Standard Pure Encapsulations B-Complex Plus 120 Capsules · 80
3 NOW Foods 69.4 5 of 5 3 Verified 2 Standard NOW Foods L-Theanine 200 mg · 74
4 Nature Made 68.7 3 of 3 1 Verified 2 Standard Nature Made Vitamin D3 2000 IU · 76

Overall winner on average score: Thorne at 81.7/100 across 6 scored products.

Per-brand deep dive

Thorneavg 81.7/100 across 6 scored products

  1. Thorne Basic Nutrients 2/Day 89/100 · Elite

    Foundational multi built on active B-vitamin forms (5-MTHF folate, methylcobalamin, P-5-P B6) and chelated minerals — the anchor product for the Elite tier.

  2. Thorne Selenium 200 mcg Dietary Supplement EXP 7/2027 87/100 · Elite

    Genuine Thorne Selenium 200 mcg as selenomethionine (highly bioavailable form).

  3. Thorne Methyl-Guard Plus Dietary Supplement, 90 Capsules EXP 10/2026 84/100 · Verified

    Thorne Methyl-Guard Plus: L-5-MTHF (methylfolate), methylcobalamin B12, P5P B6, riboflavin 5'-phosphate, betaine.

  4. Thorne Magnesium Bisglycinate 81/100 · Verified

    Bisglycinate chelate powder allows flexible dosing to hit the ~200-400 mg elemental RCT window (Boyle et al.

  5. Thorne Creatine Monohydrate 78/100 · Verified

    Micronized creatine monohydrate at the standard 5 g/serving — the most evidence-backed ergogenic aid in sports nutrition (Kreider et al.

Pure Encapsulationsavg 76.4/100 across 13 scored products

  1. Pure Encapsulations B-Complex Plus 120 Capsules 80/100 · Verified

    Pure Encapsulations B-Complex uses active/methylated forms (P5P, methylfolate, methylcobalamin, R5P), which matter for MTHFR polymorphism carriers (Pietrzik 2010 review). Fully dosed, hypoallergenic, third-party tested. Anchor Pure Encaps Verified positioning.

  2. Pure Encapsulations Magnesium (Glycinate) 80/100 · Verified

    Magnesium bisglycinate chelate at 120 mg elemental per cap — one of the best-tolerated and better-absorbed forms per crossover data (Walker et al.

  3. Pure Encapsulations O.N.E. Multivitamin 79/100 · Verified

    Once-daily hypoallergenic multi with activated B forms (methylated folate and methylcobalamin), CoQ10, and lutein — meaningful add-ons vs.

  4. Pure Encapsulations EPA/DHA Essentials 79/100 · Verified

    Molecularly distilled fish oil, balanced EPA/DHA per softgel, hypoallergenic manufacturing (Pure Encapsulations tests for 200+ contaminants and publishes CoAs).

  5. Pure Encapsulations Hair/Skin/Nails Ultra – Advanced Beauty Supplement with Biotin & Collagen - 60 Capsules 78/100 · Verified

    Combines Verisol collagen peptides (Proksch 2014 RCT: 2.5g/day for 8 weeks improved skin elasticity), high-dose biotin, CoQ10, and grape seed OPCs.

NOW Foodsavg 69.4/100 across 5 scored products

  1. NOW Foods L-Theanine 200 mg 74/100 · Verified

    Single-ingredient L-theanine at 200 mg — the exact dose used in Kimura et al.

  2. NOW Foods Ultra Omega-3 73/100 · Verified

    500 mg EPA / 250 mg DHA per softgel with enteric coating — a solid concentrated fish oil at cardiovascular RCT-relevant doses (e.g.

  3. NOW Foods Magnesium Citrate 70/100 · Verified

    Magnesium citrate at 133 mg elemental per cap — well-absorbed form (Walker et al.

  4. NOW Foods L-Arginine Pure Powder - Nitric Oxide Precursor, 500g 66/100 · Standard

    Free-form pharmaceutical-grade L-arginine powder — NO precursor with RCT support for endothelial function and blood pressure (Dong 2011 meta-analysis, 4-24 g/day).

  5. NOW Foods L-Methionine Powder, USP Grade, 500 Grams (1.1 lbs) 64/100 · Standard

    USP-grade pure L-methionine powder — sulfur amino acid used as a glutathione precursor and for urinary acidification.

Nature Madeavg 68.7/100 across 3 scored products

  1. Nature Made Vitamin D3 2000 IU 76/100 · Verified

    2000 IU vitamin D3 (cholecalciferol) softgel.

  2. Nature Made Fish Oil 1200 mg 69/100 · Standard

    1200 mg fish oil delivering only 360 mg total omega-3 per softgel, meaning multiple softgels are needed to hit the guideline dose.

  3. Nature Made Extra Strength Melatonin 10 Mg Tablets, 70 Count Sleep Aid Supplement 61/100 · Standard

    Nature Made is one of the few USP-Verified supplement brands, which is a meaningful QA anchor.

How the scoring works

Every product is scored on six dimensions — evidence (RCT quality supporting the active ingredients at the label dose), formulation (dose adequacy, bioavailability form, redundancy), manufacturing (third-party testing, GMP, facility audits), safety (adverse-event profile, interactions, dose ceiling), transparency (dose disclosure vs proprietary blends, honest marketing), and sustainability (sourcing, packaging, corporate practice). Tier thresholds: Elite 85+, Verified 70–84, Standard 50–69, Rejected 0–49. Rejected products stay listed with reasons. Full rubric →