Flip over almost any collagen supplement and you'll see "hydrolyzed collagen" or "collagen peptides." Those words describe a specific process, and it's the reason collagen can be taken as a supplement at all. Here's what it means in plain English.
Written by Vita Globe Editorial Team | Reviewed against peer-reviewed reviews and human absorption studies
What is hydrolyzed collagen?
Hydrolyzed collagen is collagen that has been broken down, usually with enzymes, into short protein fragments called peptides. These peptides have a low molecular weight (about 3–6 kDa) and come mainly from bovine, porcine or marine sources[2]. Human studies show some collagen-derived peptides can be detected in the blood after they're eaten[3]. "Collagen peptides" and "collagen hydrolysate" mean the same thing.
Caveat: Being absorbable doesn't prove a benefit. Skin results are mixed once study quality and funding are considered[6].
Sources: León-López 2019 review · Iwai 2005 · Myung & Park 2025 · Verified 2026-09-27
In this article
What is collagen in the first place?
Collagen is a family of structural proteins. There are 28 known collagen types in vertebrates, and they help give skin, bone, tendon, cartilage and other connective tissues their strength and shape[1]. The hallmark of collagen is its triple helix: three long protein chains wound tightly around each other, rich in the amino acids glycine, proline and hydroxyproline[1].
That tight, rope-like structure is great for holding your body together. It also makes intact collagen large and hard to work with as a supplement ingredient. That's where hydrolysis comes in.
What does "hydrolyzed" actually mean?
Hydrolysis means using water, plus enzymes or acid or alkaline conditions, to cut protein chains into smaller pieces. For collagen supplements, manufacturers typically extract collagen from animal tissue and then hydrolyze it into peptides. A 2019 review in Molecules describes hydrolyzed collagen as a group of low-molecular-weight peptides (roughly 3–6 kDa) made by enzymatic action under controlled conditions[2].
You'll see a few names on labels for the same basic ingredient:
| Label term | What it means |
|---|---|
| Hydrolyzed collagen | Collagen broken into peptides |
| Collagen peptides | Same thing, named by the end product |
| Collagen hydrolysate | Same thing, common in research papers |
| Gelatin | Partially broken-down collagen; larger pieces that gel when cooled |
Because the peptides are small, hydrolyzed collagen dissolves more easily than intact collagen, which is why it works in powders, drinks and gummies[2]. If you're weighing formats, see Collagen Gummies vs. Powder.
Where does hydrolyzed collagen come from?
Collagen is an animal protein. The main commercial sources are bovine (cattle), porcine (pig) and marine (fish skin and scales)[2]. That has two practical consequences:
- It isn't vegan or vegetarian. "Vegan collagen" products generally contain other nutrients meant to support your own collagen production, not collagen itself.
- The source matters for allergies and diet. Marine collagen comes from fish, so people with a fish allergy should read labels carefully.
Most hydrolyzed collagen supplements are rich in type I collagen, the main type in skin and bone. For a breakdown of the types, read Collagen Types 1, 2 & 3: What's the Difference?
What happens after you swallow collagen peptides?
Like other proteins, collagen peptides are mostly digested into amino acids. But researchers have found that some small collagen-derived peptides survive digestion. A 2005 human study identified food-derived collagen peptides, including the dipeptide prolyl-hydroxyproline, in the blood after people ate gelatin hydrolysates[3].
Hydrolysis also seems to speed things up. In a small randomized crossover trial of 10 healthy men, enzymatically hydrolyzed collagen raised blood levels of glycine, proline and hydroxyproline more than non-hydrolyzed collagen over 240 minutes[4].
One common misconception is worth clearing up: swallowed collagen doesn't travel intact to your skin and slot into place. Your body breaks it down and uses the pieces. The theory behind collagen supplements is that these peptides and amino acids may act as building blocks or signals for your own collagen-making cells, which is still being studied.
Does hydrolyzed collagen actually do anything?
The evidence is real but debated. A 2023 meta-analysis of 26 randomized trials with 1,721 participants found hydrolyzed collagen improved skin hydration and elasticity compared with placebo, while calling for larger, better-designed studies[5]. A 2025 meta-analysis of 23 trials reached a more cautious conclusion: benefits appeared in industry-funded and lower-quality studies, while high-quality studies showed no significant effect[6].
We go deeper on the skin data in Collagen for Wrinkles & Skin Elasticity: What the Trials Found and Does Collagen Actually Work?
The honest summary
- Hydrolyzed collagen = collagen peptides = collagen hydrolysate.
- It's animal-derived, usually bovine, porcine or marine.
- Some collagen peptides reach the bloodstream; hydrolysis speeds absorption.
- Skin benefits are promising in some trials but disputed in the highest-quality ones.
Our option
Vita Globe Hydrolyzed Collagen Gummies – 60ct
Our collagen gummies use hydrolyzed collagen peptides in a fruit-flavored gummy. Suggested use is 2 gummies once daily, preferably with a meal, and every Vita Globe product is tested by an independent third-party lab. See the Supplement Facts panel for the collagen amount and source.
Frequently asked questions
Is hydrolyzed collagen better than regular collagen?
For supplements, hydrolyzed collagen is the practical choice: it dissolves easily[2] and was absorbed faster than non-hydrolyzed collagen in a small trial[4]. Most skin research used hydrolyzed forms.
Are collagen peptides and hydrolyzed collagen the same?
Yes. They're different names for collagen that's been broken into small peptides.
Is gelatin the same as hydrolyzed collagen?
They're related. Gelatin is partially broken-down collagen with larger pieces, which is why it gels. Hydrolyzed collagen is broken down further and doesn't gel.
Is hydrolyzed collagen vegan?
No. It comes from animal sources such as cattle, pigs or fish[2].
Does hydrolyzed collagen go straight to your skin?
No. It's digested, and some small peptides appear in the blood[3]. Whether those peptides meaningfully change your skin is what trials are still testing.
Sources
- Ricard-Blum S. The collagen family. Cold Spring Harb Perspect Biol. 2011;3(1):a004978. doi:10.1101/cshperspect.a004978
- León-López A, Morales-Peñaloza A, Martínez-Juárez VM, Vargas-Torres A, Zeugolis DI, Aguirre-Álvarez G. Hydrolyzed collagen—sources and applications. Molecules. 2019;24(22):4031. doi:10.3390/molecules24224031
- Iwai K, Hasegawa T, Taguchi Y, et al. Identification of food-derived collagen peptides in human blood after oral ingestion of gelatin hydrolysates. J Agric Food Chem. 2005;53(16):6531-6536. doi:10.1021/jf050206p
- Skov K, Oxfeldt M, Thøgersen R, Hansen M, Bertram HC. Enzymatic hydrolysis of a collagen hydrolysate enhances postprandial absorption rate—a randomized controlled trial. Nutrients. 2019;11(5):1064. doi:10.3390/nu11051064
- Pu SY, Huang YL, Pu CM, et al. Effects of oral collagen for skin anti-aging: a systematic review and meta-analysis. Nutrients. 2023;15(9):2080. doi:10.3390/nu15092080
- Myung SK, Park Y. Effects of collagen supplements on skin aging: a systematic review and meta-analysis of randomized controlled trials. Am J Med. 2025;138(9):1264-1277. doi:10.1016/j.amjmed.2025.04.034
About the Vita Globe Editorial Team
The Vita Globe Editorial Team researches and writes our wellness content, working from peer-reviewed research, systematic reviews and guidance from bodies such as the NIH and the FDA. We cite our sources inline and update articles when the evidence changes.
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. This article is for informational purposes only and is not a substitute for medical advice. Talk to your healthcare provider before starting any new supplement, particularly if you are pregnant, nursing, taking medication, or caring for a child.
