Looking for the best liquid marine collagen in the UK? Start with the daily serving, rather than the biggest number on the bottle. Compare how much hydrolysed fish collagen you get, the other ingredients, how long the pack lasts and what each serving costs. There is no single product that is best for everyone.
Nutrabytes Advanced Liquid Marine Collagen provides 10,000 mg (10 g) of hydrolysed fish collagen in a 25 ml serving, with 50 mg hyaluronic acid and 60 mg vitamin C. Its 500 ml bottle supplies 20 daily servings. This is a Nutrabytes buying guide including a small factual comparison with other brands, rather than an independent ranking or a claim of clinical superiority.
Written by Nutrabytes. Product information checked: 14 October 2026.
Cover image is an editorial illustration of the format, not a measured serving or product photograph.
How do liquid marine collagen drinks compare?
This table compares labelled daily servings, not proven effectiveness. Products with different doses and formulations cannot be treated as clinically equivalent. Figures refer to the specific products linked below and may change.
| Product | Collagen per serving | Serving format |
|---|---|---|
| Nutrabytes Advanced Liquid Marine Collagen | 10,000 mg (10 g) | 25 ml from a 500 ml bottle; 20 servings |
| Absolute Collagen Marine Liquid Collagen Drink | 8,000 mg (8 g) | 10 ml sachet; check the selected pack size |
| Skinade original drink | 7,000 mg (7 g) | 150 ml bottle; the brand also lists a 15 ml sachet format |
A larger drink is not necessarily a larger collagen serving: drink volume and collagen weight are different measurements. A higher collagen number does not, on its own, establish a better outcome. These examples are not an exhaustive market review. Competitor specifications were checked on 14 October 2026.
What does 10,000 mg marine collagen actually mean?
10,000 mg equals 10 g of collagen. On Nutrabytes Advanced Liquid Marine Collagen, that amount is supplied in the recommended 25 ml daily serving. The 500 ml figure describes the whole bottle volume, rather than the collagen content of one serving.
Hydrolysed means collagen has been broken down into smaller peptide chains during processing. Hydrolysis is used in both liquid and powder products. It does not mean collagen bypasses digestion or travels directly to the skin.
For a 10,000 mg marine collagen comparison, check that each figure refers to the recommended daily serving. Then compare collagen source, full ingredients, added nutrients, allergens and storage. Matching collagen weights do not make two finished formulations identical.
What is in Nutrabytes Advanced Liquid Marine Collagen?
It is a mixed-berry-flavoured liquid food supplement with hydrolysed fish collagen, vitamins, minerals and other ingredients. The product-page nutrient table lists:
| Ingredient | Amount |
|---|---|
| Hydrolysed fish collagen | 10,000 mg |
| Hyaluronic acid | 50 mg |
| Vitamin C | 60 mg |
| Biotin | 1,500 μg |
| Selenium | 55 μg |
Vitamin C contributes to normal collagen formation for the normal function of skin, bones and cartilage.* Biotin contributes to the maintenance of normal skin and hair.* Selenium contributes to the maintenance of normal hair and nails.* These claims relate to the named nutrients and do not establish that collagen reverses ageing or hyaluronic acid in this drink improves skin hydration.
How to compare price per daily serving
Use pack price ÷ recommended daily servings = cost per serving. Include delivery charges and compare equivalent purchase options, rather than a subscription discount against another brand’s one-off price.
At the £24.99 one-time product price checked on 14 October 2026, Nutrabytes’ 20-serving bottle costs approximately £1.25 per serving, excluding delivery. Thirty servings use one and a half bottles, equivalent to about £37.49 of product at that price. Bottles are purchased whole, and prices and offers can change.
If you subscribe, match delivery frequency to your use. A daily serving uses one bottle in 20 days; a 30-day delivery interval does not provide uninterrupted daily supply from a single bottle.
What should you check before buying?
- Routine: a pre-mixed berry drink or powder to mix into food?
- Ingredients: check added vitamins, minerals, flavourings, preservatives and sweeteners.
- Suitability: marine collagen contains fish and is not vegan or vegetarian.
- Traceability: ask for relevant origin and testing information if these matter to your decision.
- Storage: check refrigeration and use-after-opening instructions.
- Claims: distinguish nutrient claims from promises about the finished product.
Does liquid collagen reduce wrinkles or improve skin hydration?
Research findings vary and studies use different formulations. A 2025 systematic review found no significant skin benefit in its high-quality study subgroup. That does not support promising a specific result from Nutrabytes or declaring liquid more effective than powder. Read the review and its limitations.
Liquid marine collagen: frequently asked questions
What is Nutrabytes Advanced Liquid Marine Collagen?
A mixed-berry-flavoured food supplement containing 10,000 mg hydrolysed marine collagen per 25 ml serving, alongside hyaluronic acid, vitamin C, biotin, additional vitamins and minerals.
How much marine collagen is in each serving?
Each 25 ml serving provides 10,000 mg (10 g) of hydrolysed fish collagen peptides. The product’s ingredient listing identifies collagen Types I and III.
Does it contain hyaluronic acid and vitamin C?
Yes. Each 25 ml serving includes 50 mg hyaluronic acid and 60 mg vitamin C. Vitamin C contributes to normal collagen formation for the normal function of skin, bones and cartilage.*
Does it contain ingredients for hair and skin?
Yes. Each serving contains 1,500 μg biotin and 55 μg selenium. Biotin and selenium contribute to the maintenance of normal hair.* Biotin contributes to the maintenance of normal skin.* Selenium contributes to the maintenance of normal nails.*
How many servings are in a bottle?
One 500 ml bottle contains 20 servings of 25 ml. At one serving daily, one bottle lasts 20 days, rather than a full calendar month.
Is Nutrabytes Marine Collagen suitable for vegetarians or vegans?
No. It contains hydrolysed fish collagen, so it is not suitable for vegetarians or vegans. It contains fish and is unsuitable for anyone with a fish allergy.
How do I take the product?
Take 25 ml once daily, preferably with a meal. Refrigerate after opening and use within two months, in line with the current listing. Follow the storage and safety instructions on your bottle. This product is for adults aged 18 and over.
Is Nutrabytes the right format for your routine?
If you want a pre-mixed berry flavour with 10 g fish collagen per serving and added vitamin C, biotin and selenium, explore Nutrabytes Advanced Liquid Marine Collagen. Prefer an unflavoured option to mix yourself? Read our liquid versus powder comparison before choosing.
Suitability: Contains fish. Not suitable for vegetarians, vegans or anyone with a fish allergy. For adults aged 18 and over. If pregnant, breastfeeding, taking medication or under medical supervision, consult your GP or pharmacist before use. Follow the bottle label and do not use if the seal is broken.
*Health claims refer to the named vitamins and minerals, not to collagen or hyaluronic acid. Food supplements should not replace a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily serving.
Sources and comparison notes
- Nutrabytes: ingredients, nutrient table, directions and price.
- Absolute Collagen: marine liquid specification.
- Skinade: serving formats and nutritional information.
- Great Britain nutrition and health claims register.
- Effects of Collagen Supplements on Skin Aging (2025).
Product facts and prices are a dated snapshot. Check the current label before purchase.
