EVIDENCE-BASED SUPPLEMENT SCORING
8.3/10
SOLID OPTION

Confidence: 100%

THORNE - Collagen Fit - Unflavored Collagen Peptides Powder with Nicotinamide Riboside - 15g of Collagen Peptides and 14g Protein per Serving - NSF Certified for Sport - 17.8 Oz - 30 Servings

THORNE - Collagen Fit - Unflavored Collagen Peptides Powder with Nicotinamide Riboside - 15g of Collagen Peptides and 14g Protein per Serving - NSF Certified for Sport - 17.8 Oz - 30 Servings

B0B7K9Y1FD

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Decision summary

CONSIDERSOLID OPTION

A solid product, but not a clean win. The main trade-off is weaker ingredient form quality.

Best for

People prioritizing high absorption and overall formula quality.

Consider another option if

You want fewer compromises on formulation quality.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

8.2/10

Generally solid dosing

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

Score summary

Collagen-peptides: dose within clinically studied range (evidence B). The main limitation is that trimethylglycine: below clinically studied range.

Strengths

Collagen-peptides: dose within clinically studied range (evidence B)
Collagen-peptides: high-bioavailability form declared (Collagen Hydrolysate)

Weaknesses

Trimethylglycine: below clinically studied range

Final verdict

A solid product, but not a clean win. The main trade-off is weaker ingredient form quality.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

✔ Clinically effective dose with strong supporting evidence

Dose is within the optimal/effective range. A clear strength: Dose is strong and within effective ranges. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

de Miranda et al. systematic review collagen peptides and skin elasticity

Journal of Cosmetic Dermatology • 2021

PMID: 31627309.0

⚠ Moderate evidence exists, but dose is below effective threshold

Dose is below the minimum effective threshold. This is a limiting factor: Dose is likely below clinically useful levels.

Scientific evidence

RCT

Schwab et al. RCT betaine supplementation and homocysteine

American Journal of Clinical Nutrition • 2002

PMID: 15649952.0

Evidence inferred from established knowledge, not directly linked studies

Adequate, but not a key strength: Clinical dosing guidance is limited for this ingredient.

No supporting studies or dosing references are currently available for this ingredient.

THORNE - Collagen Fit - Unflavored Collagen Peptides Powder with Nicotinamide Riboside - 15g of Collagen Peptides and 14g Protein per Serving - NSF Certified for Sport - 17.8 Oz - 30 Servings

THORNE - Collagen Fit - Unflavored Collagen Peptides Powder with Nicotinamide Riboside - 15g of Collagen Peptides and 14g Protein per Serving - NSF Certified for Sport - 17.8 Oz - 30 Servings

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

!

Trimethylglycine dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

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