Ingredient Guide

Collagen Peptides: Type I & III, and What to Expect

Most people buy collagen for their skin and end up using it as an easy daily protein — both are fair reasons, as long as your expectations match the evidence. Hydrolyzed collagen peptides dissolve cleanly into coffee or a shake, digest easily, and offer a realistic skin upside rather than a guaranteed one.

  • Evidence-based
  • Structure/function only
  • No proprietary blends

What it is

Collagen is the most abundant structural protein in the body, found throughout skin, tendons and connective tissue. Supplemental collagen is usually hydrolyzed — broken into short peptides that mix and digest easily — and most powders are Type I and III from bovine sources. It also counts as dietary protein, supplying amino acids like glycine and proline, though it isn't a complete protein the way whey is, so it works best as an addition rather than your main protein source.

How it works

As a protein, hydrolyzed collagen supplies amino acids your body uses, and it's studied mainly around skin and connective-tissue support. In some trials, people taking it consistently for several weeks saw measured improvements in skin hydration and elasticity. It works as a daily habit rather than an overnight change, and for many people the most dependable everyday benefit is simply an easy way to add protein, especially in the morning.

Why the form & source matter

Hydrolyzed is the detail that decides how a powder behaves: the short peptides dissolve into a hot drink instead of clumping. The skin research is genuinely mixed — some analyses show better hydration and elasticity versus placebo, while a more recent, higher-quality review found those effects soften once smaller, industry-funded studies are set aside. The fair read is promising but not settled. When choosing, look for the collagen type, the source and grams per serving rather than a blend that hides a little collagen behind added vitamins.

How Monthlees uses it

Monthlees Grass-Fed Hydrolyzed Collagen Peptides are Type I & III and unflavored, with the grams per scoop on the label. Unflavored is deliberate: it stirs into coffee, water or a shake without changing the taste, which is how most people fit it into a daily routine. You get a clean daily protein with a possible skin benefit and nothing else along for the ride.

Frequently asked questions

What are collagen peptides?

Hydrolyzed collagen broken into small, easily mixed peptides that also provide dietary protein.

Does collagen help skin?

The research is mixed: some studies show hydration and elasticity benefits, while higher-quality, non-industry-funded reviews are more cautious.

What does "hydrolyzed" mean?

The collagen is broken down enzymatically so it dissolves and digests more easily.

How do people use it?

Usually stirred into water, coffee or a shake as a daily protein addition.

Research & references

  1. Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-AnalysisNutrients (2023) (source)
    Pooled RCT data associated hydrolyzed collagen with improved skin hydration and elasticity vs placebo; authors note biases and call for larger trials.
  2. Effects of Collagen Supplements on Skin Aging: A Systematic Review and Meta-Analysis of Randomized Controlled TrialsThe American Journal of Medicine (2025) (source)
    When stratified by funding source and study quality, benefits weakened — used to keep copy honest and avoid overclaiming.

References are provided for general educational context. They do not imply that this product treats, cures, or prevents any disease.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Grass-Fed Hydrolyzed Collagen Peptides

20 grams of grass-fed hydrolyzed collagen — structural protein for skin, joints, and connective tissue.

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