EVIDENCE-BASED SUPPLEMENT SCORING
6.3/10
AVERAGE

Confidence: 90%

ForestLeaf Collagen Peptides Powder Unflavored - Hydrolyzed Grass Fed Keto Collagen Protein Powder Type 1, 2 & 3 - Vital Hair, Skin, Nails, Joints, Recovery, 11g Per Serving

ForestLeaf Collagen Peptides Powder Unflavored - Hydrolyzed Grass Fed Keto Collagen Protein Powder Type 1, 2 & 3 - Vital Hair, Skin, Nails, Joints, Recovery, 11g Per Serving

B07FKRMT81

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Decision summary

CONSIDERAVERAGE

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

Best for

Buyers comparing price and availability and okay with a middle-of-the-pack option.

Consider another option if

You prefer fully transparent formulas over blends and ambiguous labeling.

Score breakdown

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

Dosage quality

5.9/10

Acceptable dosing, but not standout

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).

Multi-ingredient formulation analysis

Dose 5.9/10 · Bioavailability 2.8/10 · Coherence 0/10

Ingredient form quality suggests suboptimal ingredient forms.

A proprietary blend limits independent dose verification.

This is a multi-ingredient product. The score reflects formulation quality, not efficacy for a specific health goal.

Score summary

Glycine: high-bioavailability form declared (Glycine). The main limitation is that proprietary blend prevents independent dose verification.

Strengths

Glycine: high-bioavailability form declared (Glycine)
Histidine: high-bioavailability form declared (L Histidine)

Weaknesses

Proprietary blend prevents independent dose verification
Formula coherence is weak: diluted, decorative or overly complex
Whey-protein: below clinically studied range

Final verdict

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

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.

ℹ Dose is within established clinical ranges, but lacks direct studies

Dose is within the optimal/effective range. Solid but not a standout: Dose is directionally useful, but not a standout strength.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 2500 mgOptimal: 5000 mgUpper: 15000 mgGrade: B

⚠ Moderate evidence exists, but dose is below effective threshold

Dose is below the minimum effective threshold. One of the weaker points: Dose is below the ranges usually used for stronger effects. The declared form supports strong absorption.

Scientific evidence

RCT

Bannai et al. RCT glycine supplementation and sleep quality

Sleep and Biological Rhythms • 2012

PMID: 22529837.0

⚠ Strong evidence exists, but dose is below effective threshold

Dose is below the minimum effective threshold. A clear drag on the formula: Dose is likely below clinically useful levels.

Scientific evidence

Meta-analysis

Tang et al. meta-analysis protein supplementation and muscle mass gain

British Journal of Nutrition • 2009

PMID: 22150425.0

Evidence inferred from established knowledge, not directly linked studies

Adequate, but not a key strength: Clinical dosing guidance is limited for this ingredient. The declared form supports strong absorption.

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

⚠ Moderate evidence exists, but dose is below effective threshold

Dose is below the minimum effective threshold. A clear drag on the formula: Dose is likely below clinically useful levels. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

Jongkees et al. meta-analysis tyrosine and cognitive performance under stress

Neuroscience & Biobehavioral Reviews • 2015

PMID: 25797858.0

RCT

Banderet & Lieberman RCT tyrosine and cognitive performance under stress

Brain Research Bulletin • 1989

PMID: 2736402.0

Evidence inferred from established knowledge, not directly linked studies

Adequate, but not a key strength: Clinical dosing guidance is limited for this ingredient. The declared form supports strong absorption.

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

ForestLeaf Collagen Peptides Powder Unflavored - Hydrolyzed Grass Fed Keto Collagen Protein Powder Type 1, 2 & 3 - Vital Hair, Skin, Nails, Joints, Recovery, 11g Per Serving

ForestLeaf Collagen Peptides Powder Unflavored - Hydrolyzed Grass Fed Keto Collagen Protein Powder Type 1, 2 & 3 - Vital Hair, Skin, Nails, Joints, Recovery, 11g Per Serving

Warnings & notes

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

i

Proprietary blend limits dose transparency

Exact ingredient amounts cannot be verified clearly.

Info

Formula design looks less coherent than stronger alternatives

The formulation appears less focused than better-built options.

Note
!

Whey Protein 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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