Collagen
Hydrolysed collagen peptides in powders, capsules and liquid sachets, from marine and bovine sources. We explain which form suits your routine, why the dose per serving matters more than the label, and how to take it daily.Read more →
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Marine and bovine collagen peptides: what to look for
Collagen is the protein that gives skin, tendons and cartilage their structure. Your body builds it from amino acids, mainly glycine, proline and hydroxyproline. Supplements do not deliver whole collagen. They deliver hydrolysed collagen peptides: the long protein chains are cut into short pieces, so your gut can absorb them.
The source decides the collagen type
Marine collagen comes from fish skin and is almost entirely type I, the type that dominates in skin. Bovine collagen supplies types I and III and usually costs less per gram. Chicken and eggshell membrane deliver type II, which belongs to cartilage. Multi-collagen blends put several sources in one scoop. In practice your diet decides: marine is out with a fish allergy, bovine is out if you avoid beef. If you shop by goals for skin, hair and nails, type I sources are the usual starting point.
Grams per serving, not the number on the front
Human studies mostly use 2.5 to 10 grams of peptides a day. One scoop of powder reaches that. Capsules hold far less per serving, so a small capsule dose is a top-up rather than the same thing. Three things are worth checking on every label:
- the grams of peptides per serving
- how many servings the pack really contains
- whether the peptides are hydrolysed
Many products add vitamin C, and supplements with vitamin C are worth a look, because vitamin C contributes to normal collagen formation for the normal function of skin.
Timing is flexible, taste is not
Peptides are not a pre-workout, so morning coffee, porridge or an evening drink all work equally well. Unflavoured powders dissolve in hot and cold liquid, although marine powders can carry a faint fishy note that flavoured versions cover. Liquid sachets cost more per gram. People choose them for convenience, not for better absorption. A sachet you actually take beats a tub that stays in the cupboard.
How we choose the collagen we stock
We look at three things: the form, the dose and the combinations. We stock hydrolysed peptides, because whole collagen is too large to absorb well. We want the grams stated per serving, not hidden inside a blend. We keep both marine and bovine options, so allergies and diets are covered, and we say plainly that a bovine powder is often the cheaper route to the same daily grams. Every product passes our compliance team, we test products ourselves and independent labs spot-check batches. You can read how we select brands and products.
Who it suits, and what is realistic
Collagen peptides suit people who want a steady daily habit: often adults over forty, people training hard, and anyone whose protein intake is low. In the UK no health claim is authorised for collagen itself, so we will not promise firmer skin. What we can say is concrete: it is a protein, taken daily, and the studies run for eight to twelve weeks before they measure anything. Give it that long at a consistent dose and judge it then, not after a fortnight. For the rest of your routine, browse the rest of our supplement range.
Frequently asked questions
They are food supplements that supply hydrolysed collagen peptides: collagen from fish skin, cattle hide or chicken cartilage that has been broken into short chains so the gut can absorb them. Collagen itself is the structural protein in skin, tendons and cartilage, and your body builds it from amino acids. A supplement gives you those amino acids in a concentrated, easy daily dose, in powder, capsule or liquid form.
