Liquid collagen drinks and shots: worth it?
Not clearly, in a shot, sachet or scoop. No trial pits drinks against powder. And in Britain, collagen isn’t allowed a health claim. Any approved claim on the bottle is about something else.
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Does liquid collagen work?
Not clearly. Companies sell collagen peptides, or collagen cut into small pieces, in powders and drinks. Reviews of the trials disagree on what they do.
Pool 23 skin trials and collagen seems to help. But trials not paid for by drug companies found no effect on dry skin, springiness or wrinkles. Nor did the high-quality ones.
A 2026 update of 35 trials found springier skin after at least 12 weeks. Its wrinkle gains came from a few results far out of line.
| Study | Who or what | What it found |
|---|---|---|
| 2025 skin review | 23 trials, 1,474 people | No effect in independent or high-quality trials. |
| 2026 skin update | 35 trials, 2,534 people | Springier skin after at least 12 weeks. Wrinkle gains not reliable. |
| 2026 re-check | Earlier reviews, with dose taken into account | No evidence of benefit. |
| 2019 drink trial | 72 women aged 35 or older, 12 weeks | Better skin on a drink with 2.5 g of collagen and 5 other ingredients. Paid for by the maker. |
Sources: Myung 2025; Batool 2026; Grimes 2026; Bolke 2019
So the best case is less dry, springier skin after about 3 months, not fewer lines. Decide if that’s worth a daily bottle to you. More detail: does collagen work for skin.
Is liquid collagen better than powder?
We found no trial that compares drinks with powder, sachets or jelly. So there’s no proof a shot gets into your body better.
The drink trial above mixed collagen with vitamin C, zinc, biotin, vitamin E and fruit extract. A 2026 review lists mixes like this as one reason the evidence is weak. You can’t tell which part did the work.
Side effects in trials were rare across forms and doses. So pick the form by what you will take every day.
| Form | What to check |
|---|---|
| Shot or drink | Grams of collagen per bottle, and sugar from fruit juice. |
| Sachet | Grams per sachet, and whether it’s sweetened. |
| Jelly | Sugar per 100g. More than 22.5g is high. |
| Tub of powder | Grams per scoop, and how many scoops a day. |
Sources: NHS food labels; NHS sugar
Fruit juice counts as free sugar, the kind the NHS wants you to cut. Adults should have no more than 30g of free sugars a day.
So check the label for fruit juice and the sugar per serving before you buy.
What does the collagen claim on the label mean?
Britain keeps a register of health claims for food and supplements. Claims that collagen keeps skin firm or helps joints are marked not authorised.
So the approved skin claims on a collagen drink are about something else, mostly the vitamin C. “Vitamin C contributes to normal collagen formation for the normal function of skin” is approved. It’s only allowed on products with enough vitamin C to count as a source of it.
| Claim you may see | Approved in Britain? | What it’s about |
|---|---|---|
| Collagen helps skin stay firm and elastic. | No | Not linked to a body function. |
| Collagen helps joints work well. | No | Not backed by the evidence. |
| Vitamin C contributes to normal collagen formation for the normal function of skin. | Yes | The vitamin C in the product. |
| Biotin or zinc contributes to the maintenance of normal skin. | Yes | The biotin or zinc. |
Adults aged 19 to 64 need 40mg of vitamin C a day. The NHS says you should be able to get it all from your diet.
Already take vitamin C? Add the two together. More than 1,000mg a day can cause stomach pain, diarrhoea and wind.
How to choose the best liquid collagen
No review names a best product. Trials used from about 0.25 g up to 10 to 12 g a day. So judge the label, not the advert.
Cost per gram makes forms easy to compare. Say a box of 10 shots costs £30 and each holds 5 g. That’s 50 g for £30, or 60p a gram.
How to pick a liquid collagen
- Find the grams of collagen per daily serving. Trials used about 0.25 g up to 10 to 12 g a day.
- Check the sugar. Adults should have no more than 30g of free sugars a day, and fruit juice counts.
- Work out the cost per gram: divide the price by the total grams of collagen in the pack.
- Check the label for fish. If you have a fish allergy, speak to your GP before you try it.
- Add up the vitamin C in it and any you already take. More than 1,000mg a day can cause stomach pain, diarrhoea and wind.
- Take it every day for 12 weeks before you judge it. Judge it by less dry, springier skin, not fewer lines.
Sources: Grimes 2026; NHS sugar; NHS vitamin C; Biełach-Bazyluk 2026; Batool 2026
Fish collagen has caused serious allergic reactions in some people. More on that in marine collagen.
For dose and timing, see how to take collagen.
When to speak to a GP
Allergy symptoms can come straight after a food or days later. See a GP if:
- You think you or your child may have a food allergy.
- You get itchy skin, wheezing, tummy pain, or feel or are sick after a collagen drink.
- You have a fish allergy and want to try a marine collagen drink.
- A mole has changed size, shape or colour, or is painful, itchy, inflamed, bleeding or crusty.
- You have a new or unusual mark on your skin that has not gone away after a few weeks.
Call 999 if your lips, mouth, throat or tongue suddenly swell. Call 999 if you’re breathing very fast, struggling to breathe, your throat feels tight or you’re struggling to swallow.
Also call 999 if skin, tongue or lips turn blue, grey or pale, or you suddenly feel very confused, drowsy or dizzy. The same goes if someone faints and can’t be woken, or a child is limp, floppy or not responding like they normally do.
Buying it for lines? Read about sunscreen and skin ageing too.