Liquid Collagen Supplement



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Cutizana is the high strength liquid collagen supplement for radiant skin, fabulous hair and strong nails.  It is also used to support tendons and ligaments.

  • 10,000mg (10g) of type I and III collagen
  • Hyaluronic acid, Biotin & more
  • Amino acids for collagen, keratin and elastin
  • More nutrients than any tablets
  • Recyclable bottle, no sachet waste

Best in class value with ten grams of marine collagen in a single delicious serving.  Cutizana is also sold in beauty salons and physical therapy clinics.

One-time or Subscribe:  Buy Cutizana with one-time purchase or save 25% with a regular subscription. These are easy to start, pause or cancel at any time.  If you take supplements every single day, choose the 20 day interval.  If not, we advise a 30 or 40 day interval. (For more on subscriptions)

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High Strength Collagen Supplement

As we age, our body’s own production of collagen declines and this is where Cutizana steps in.

Cutizana contains an industry-leading 10 grams (10,000mg) of type 1 and 3 marine collagen whose amino acids are used in the proteins collagen, elastin and keratin.

Collagen, elastin and keratin proteins are the building blocks of our skin, hair and nails and all of the amino acids in these proteins are found in Cutizana.

They are also the foundation of many soft tissues in the body including tendons and ligaments.

  • Collagen is made of glycine, proline, alanine, and hydroxyproline.
  • Elastin is made of glycine, proline, alanine, leucine, and valine.
  • Keratin is made of methionine, cysteine, and cystine.

Cutizana is sold in salons as well as injury rehabilitation clinics.

See article – Combining Collagen With Shockwave Therapy


Hydrolyzed collagen or collagen peptides?  The two are exactly the same, just different words.  Hydrolyzed collagen or collagen peptides is simply collagen which has been broken down so that the amino acids can be dissolved and thus be available and easily absorbed by the body.


Human skin is made of three layers;  epidermis, dermis and subcutis.  The outer protective epidermis layer is made from keratin which gives the skin its rigidity.  It takes roughly five weeks for new cells to reach the skin surface.

The middle layer is the dermis.  The dermis is made of collagen (75-85%) and elastin and together they give the skin its firmness and elasticity.  Lower levels of collagen production as we age and low levels of elastin cause the skin to wrinkle and sag.

The third layer of the skin is the hypodermis or subcutis and this houses the sweat glands and a layer of fat for insulation and energy storage, whilst providing cushioning against knocks and bumps.


95% of human hair is made of keratin. Whilst keratin is extremely strong and rigid if thick, when it is fine it has great flexibility.  Keratin is made up of amino acids and cysteine is a key amino acid in the production of keratin for healthy hair.  Diet and environment can affect the hair and whilst products can be used on our hair, the starting point for healthy hair comes from the inside.


Fingernails are also made from keratin which gives them their strength and resilience.  Read our article How collagen helps brittle nails. Interesting fact, keratin is the substance found in the horn of the rhinoceros.


Collagen is the primary building block of cells in our body including tendon and ligament tissues. Type I collagen provides mechanical durability and strength and type III collagen is believed to support healing by rapidly forming crosslinks to stabilise a repair site.

Cutizana is used by physical therapists to provide nutritional support for the rehabilitation of tendons and ligament injuries, including tendinopathy, tendonitis, tissue tears and post-surgery rupture recovery.  Read our research supported article Supporting Achilles Tendon Injury Rehabilitation With Collagen.


In addition to a large supply of collagen, Cutizana also provides other nutrients:

Hyaluronic acid – Found in the the epidermis and dermis, hyaluronic acid helps to keep our skin moist by trapping water molecules.  Drinking enough water is of course a key foundation of maintaining healthy skin.
Silica – Required for the formation of collagen as well as some enzymes that enhance skin strength and elasticity.  It is also used in nails.
Copper – Used in the production of collagen and elastin.
Vitamin C – Necessary for collagen and elastin production, it is a powerful antioxidant which protects cells from damage caused by “free radicals”.
Vitamin B5, B6, B7 (biotin), B12 – B vitamins are water-soluble.  This means that our bodies do not store them. B12 helps with hair colour, B7 deficiency can cause brittle nails, B6 helps with collagen formation and B5 supports hair colour and hair growth.

For full details and links to supporting studies, see the ingredients tab.

There are many beauty products and supplements on the market. At Clinic Nutrition we aim to simplify the choice for you by delivering nutrient-packed, delicious tasting supplements that are a pleasure to take, without ever being over-priced to match a hype.

See and feel the difference with Cutizana.

Important Allergen Advice: Contains extracts from fish. See label image for full list of ingredients.
Not suitable for vegetarians: Type 1 & 3 marine collagen from fish source.

Ingredients & Research

Cutizana is packed with nutrients which have scientific evidence to support their use.

Here are explanations of the function of key nutrients with 29 research papers referenced.

Hydrolysed Collagen 1 & 3

Cutizana is packed with 10,000mg of type 1 and 3 collagen.  Collagen is one of the three crucial proteins that make your skin, hair, and nails, the other two are keratin and elastin.

The amino acids in collagen are glycine, proline, alanine, and hydroxyproline, whereas keratin is made of methionine, cysteine, and cystine.  Elastin is made of glycine, proline, alanine, leucine, and valine.  Cutizana contains all of these proteins.

These amino acids promote wound healing, protect the skin against UV rays, and strengthen hair follicles and nails.

Oral collagen supplements help improve the signs of ageing. They are known to improve skin elasticity, hydration, and skin plumpness. (1)

According to a 2021 study, oral intake of hydrolysed collagen for 3 months reduces wrinkles and promotes skin elasticity and hydration. (2)

In another study, women who used an oral supplement containing hydrolysed collagen, hyaluronic acid, and essential vitamins and minerals for 12 weeks achieved noticeable improvements in: (3)

  • Facial wrinkles
  • Skin elasticity
  • Skin hydration

Similar benefits were observed in another study where the participants used an oral supplement containing collagen peptides, vitamin C, and natural extracts. (4)

Moreover, orally administered collagen peptides improve brittle nails and reduce the occurrence of broken nails. (5)

Lastly, hydrolysed collagen (with specific amino acids, vitamins, and minerals) significantly increases hair density. (6)

Hyaluronic Acid

Hyaluronic acid (HA or hyaluronan) is shown to promote wound healing in animals by increasing collagen. (7)

In one study involving women (45-60 years), oral hyaluronic supplementation resulted in: (8)

  • Increased skin elasticity
  • Higher skin hydration
  • Lower skin roughness and wrinkle depths

In another study, the researchers revealed that oral administration of 200 mg of HA daily with other ingredients for 60 days led to: (9)

  • Improved skin elasticity and hydration
  • Decreased wrinkle depth
  • Improved hair and nail appearance

B7 Biotin

Biotin (Vitamin B7 or H) helps your body regenerate hair, skin, and nail by promoting keratin formation.

Its deficiency can cause hair loss, brittle nails, and red rashes on the face. (10) Luckily, supplementation has been shown to improve brittle nails and uncombable hair. (11)

Vitamin C

Vitamin C (ascorbic acid) is a water-soluble vitamin with potent antioxidant properties.

  • Your body uses vitamin C to make collagen, a crucial component of hair, skin, and nails.
  • Vitamin C is also essential for elastin production. (12) Elastin helps your skin stretch and recoil.
  • Keratin-producing cells—keratinocytes—need vitamin C to multiply. (13) Like collagen, keratin is a building block of your hair, skin, and nails.

Vitamin B5

Vitamin B5, or pantothenic acid, is a water-soluble vitamin. Your body uses B5 to make blood cells and produce energy from the food you eat.

  • A 12-week oral administration of a pantothenic acid-based supplement reduced facial acne and blemishes. (14)
  • Pantothenic acid is essential for keratinocyte division. (15)
  • Panthenol, which converts into pantothenic acid, helps trap moisture in the nails, making them strong and flexible. (16)
  • Vitamin B5 can promote collagen production by increasing the levels of micronutrients such as iron, copper, and manganese. (17)
  • Panthenol stimulates hair growth by increasing blood flow, decreasing hair follicle death, and extending the growth phase in hair follicles. (18)
  • Pantothenic acid can reverse greying of the fur in mice. However, such effects have not been replicated in humans. (19)

Vitamin B6

This water-soluble vitamin is essential for:

  • Digesting protein, fat, and carbohydrates
  • Making red blood cells
  • Producing chemical messengers in the brain, neurotransmitters

Vitamin B6 deficiency can result in inflamed, scaly patches on the scalp and skin rashes. (10, 20)

Vitamin B12

Your body needs vitamin B12 to make collagen. (21) Its deficiency has been associated with premature greying, dark skin patches, and black-brown nails. (22, 23, 24)


Copper stimulates the division of keratin- and collagen-producing cells. (25) Its deficiency can lead to premature greying and pale skin. (26)


Silica (silicon dioxide; SiO2) contains the trace mineral silicon. Your body needs silicon to make collagen. (27) In addition, silicon promotes wound healing, decreases sebum (oily substance that protects the skin and hair) production, and strengthens hair and nails.

Another naturally abundant silicon compound is orthosilicic acid. Study shows that orthosilicic acid is essential for the development of skin, hair, and nails. (28)

In another study, the researchers noted that a 20-week administration of orthosilicic acid resulted in: (29)

  • Reduced hair/nail brittleness
  • Improved skin hydration
  • Increased skin smoothness

1.Choi, Franchesca D. et al. “Oral Collagen Supplementation: A Systematic Review of Dermatological Applications.” Journal of drugs in dermatology: JDD vol. 18,1 (2019): 9-16. Miranda, Roseane B et al. “Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis.” International journal of dermatology vol. 60,12 (2021): 1449-1461. doi:10.1111/ijd.15518
3.Borumand M, Sibilla S. Effects of a nutritional supplement containing collagen peptides on skin elasticity, hydration and wrinkles. J Med Nutr Nutraceut 2015;4:47-53
4.Addor, Flávia Alvim Sant’Anna et al. “Improvement of dermal parameters in aged skin after oral use of a nutrient supplement.” Clinical, cosmetic and investigational dermatology vol. 11 195-201. 30 Apr. 2018, doi:10.2147/CCID.S150269
5.Hexsel, Doris et al. “Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails.” Journal of cosmetic dermatology vol. 16,4 (2017): 520-526. doi:10.1111/jocd.12393
6.Arias, Eva Maria et al. “Targeted Nutritional Supplementation for Telogen Effluvium: Multicenter Study on Efficacy of a Hydrolyzed Collagen, Vitamin-, and Mineral-Based Induction and Maintenance Treatment.” International journal of trichology vol. 14,2 (2022): 49-54. doi:10.4103/ijt.ijt_57_21
7.Damodarasamy, Mamatha et al. “Hyaluronan enhances wound repair and increases collagen III in aged dermal wounds.” Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society vol. 22,4 (2014): 521-6. doi:10.1111/wrr.12192
8.Göllner, Imke et al. “Ingestion of an Oral Hyaluronan Solution Improves Skin Hydration, Wrinkle Reduction, Elasticity, and Skin Roughness: Results of a Clinical Study.” Journal of evidence-based complementary & alternative medicine vol. 22,4 (2017): 816-823. doi:10.1177/2156587217743640
9.Guaitolini, Ennio et al. “Randomized, Placebo-controlled Study of a Nutraceutical Based on Hyaluronic Acid, L-carnosine, and Methylsulfonylmethane in Facial Skin Aesthetics and Well-being.” The Journal of clinical and aesthetic dermatology vol. 12,4 (2019): 40-45.
10.DiBaise, Michelle, and Sherry M Tarleton. “Hair, Nails, and Skin: Differentiating Cutaneous Manifestations of Micronutrient Deficiency.” Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition vol. 34,4 (2019): 490-503. doi:10.1002/ncp.10321
11.Patel, Deepa P et al. “A Review of the Use of Biotin for Hair Loss.” Skin appendage disorders vol. 3,3 (2017): 166-169. doi:10.1159/000462981
12.Hinek, Aleksander et al. “Sodium L-ascorbate enhances elastic fibers deposition by fibroblasts from normal and pathologic human skin.” Journal of dermatological science vol. 75,3 (2014): 173-82. doi:10.1016/j.jdermsci.2014.05.011
13.Wang, Kaiqin et al. “Role of Vitamin C in Skin Diseases.” Frontiers in physiology vol. 9 819. 4 Jul. 2018, doi:10.3389/fphys.2018.00819
14.Yang, Michael et al. “A randomized, double-blind, placebo-controlled study of a novel pantothenic Acid-based dietary supplement in subjects with mild to moderate facial acne.” Dermatology and therapy vol. 4,1 (2014): 93-101. doi:10.1007/s13555-014-0052-3
15.Kobayashi, Daisaku et al. “The effect of pantothenic acid deficiency on keratinocyte proliferation and the synthesis of keratinocyte growth factor and collagen in fibroblasts.” Journal of pharmacological sciences vol. 115,2 (2011): 230-4. doi:10.1254/jphs.10224sc
16.Hui, X et al. “In vitro human nail penetration and kinetics of panthenol.” International journal of cosmetic science vol. 29,4 (2007): 277-82. doi:10.1111/j.1467-2494.2007.00373.x
17.Vaxman, F et al. “Amélioration de la cicatrisation des anastomoses coliques par une supplémentation en vitamines B5 et C: Etude expérimentale chez le lapin” [Improvement in the healing of colonic anastomoses by vitamin B5 and C supplements. Experimental study in the rabbit]. Annales de chirurgie vol. 44,7 (1990): 512-20.
18.Shin, Jae Young et al. “Dexpanthenol Promotes Cell Growth by Preventing Cell Senescence and Apoptosis in Cultured Human Hair Follicle Cells.” Current issues in molecular biology vol. 43,3 1361-1373. 28 Sep. 2021, doi:10.3390/cimb43030097
19.Oregon State University. Linus Pauling Institute Micronutrient Information Center. Pantothenic Acid.
20.Ofoedu, Chigozie E et al. “Revisiting food-sourced vitamins for consumer diet and health needs: a perspective review, from vitamin classification, metabolic functions, absorption, utilization, to balancing nutritional requirements.” PeerJ vol. 9 e11940. 1 Sep. 2021, doi:10.7717/peerj.11940
21.Kesiktas, Nur et al. “Is There a Relationship between Vitamin B12 and Stress Urinary Incontinence?.” Lower urinary tract symptoms vol. 4,2 (2012): 55-8. doi:10.1111/j.1757-5672.2011.00116.x
22.Daulatabad, Deepashree et al. “Prospective Analytical Controlled Study Evaluating Serum Biotin, Vitamin B12, and Folic Acid in Patients with Premature Canities.” International journal of trichology vol. 9,1 (2017): 19-24. doi:10.4103/ijt.ijt_79_16
23.Brescoll, Jennifer, and Steven Daveluy. “A review of vitamin B12 in dermatology.” American journal of clinical dermatology vol. 16,1 (2015): 27-33. doi:10.1007/s40257-014-0107-3
24.Afra, T P et al. “Reversible Melanonychia Revealing Nutritional Vitamin-B12 Deficiency.” Indian dermatology online journal vol. 11,5 847-848. 19 Sep. 2020, doi:10.4103/idoj.IDOJ_13_20
25.Goluch-Koniuszy, Zuzanna Sabina. “Nutrition of women with hair loss problem during the period of menopause.” Przeglad menopauzalny = Menopause review vol. 15,1 (2016): 56-61. doi:10.5114/pm.2016.58776
26.Wong, Christine Y, and Derek H Chu. “Cutaneous signs of nutritional disorders.” International journal of women’s dermatology vol. 7,5Part A 647-652. 22 Sep. 2021, doi:10.1016/j.ijwd.2021.09.003
27.Araújo, Lidiane Advincula de et al. “Use of silicon for skin and hair care: an approach of chemical forms available and efficacy.” Anais brasileiros de dermatologia vol. 91,3 (2016): 331-5. doi:10.1590/abd1806-4841.20163986
28.Igarashi, M., Matsumoto, T., Yagihashi, F. et al. Non-aqueous selective synthesis of orthosilicic acid and its oligomers. Nat Commun 8, 140 (2017).
29.Barel, A et al. “Effect of oral intake of choline-stabilized orthosilicic acid on skin, nails and hair in women with photodamaged skin.” Archives of dermatological research vol. 297,4 (2005): 147-53. doi:10.1007/s00403-005-0584-6


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If you try any of our brands and do not feel benefit or enjoy it within 45 days of purchase, we will refund your purchase price.

We get very few refund requests, but we recognise that customer experiences do vary and no product can be to everyone’s preference.

This gives you time to enjoy a month’s supply and to experience the effects.

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Our Money Back Promise is limited to one bottle per address and household and the refund request is valid for 45 days from your date of purchase.

How to get a refund

To obtain a refund, please email us at info @ stating your original order number or use the contact form on our contact us page.

We do not offer a money back promise on multi-purchases or the triple pack.

Note: This promise is given in good faith.  It is limited to individuals and only one refund will be issued per request; bulk requests and requests made by businesses, groups, clubs or organisations will not be accepted.

At Clinic Nutrition our aim is to help people get the nutrients they need to help them live life as the best version of themselves.

Our origins come from working with musculoskeletal medical clinics and clinicians in sports science. We are real people and you can talk to us on the phone.

When it comes to nutrition we recognised the challenges of choosing supplements and the limitations of taking tablets.

From sports science we understood the advantages of dissolving nutrients in a liquid as it allows for the delivery of a broader range of nutrients and in greater quantities compared to dry-compressed tablets.

  • Easier way of consuming nutrients
  • Different nutrients work best together in the body (synergistically)
  • Dissolved nutrients are more easily-absorbed from liquid (bio-availability)
  • Single, delicious servings

Our brands are sold primarily in clinics and salons because they provide a simple and cost-effective solution to fill nutritional gaps in our diets.

The products are nutrient-packed, delicious tasting supplements which we hope are a pleasure to take, without ever being over-priced to match a marketing hype.

Clinic Nutrition is headquartered in the town of Sawbridgeworth in Hertfordshire, midway between Cambridge and London.

Our motto is #EatHealthyStayActive, with a little of what you fancy from time to time!

We hope you enjoy our products. For complete peace of mind we have a customer money back promise with our 45 Day Results Guarantee.


Customer Reviews

Based on 14 reviews
Liquid gold!

Taking this daily has improved my hair so much. I used to have very sparse areas near my temples and this hair has grown back and is now getting as thick as the rest of my hair. The subscription makes it more affordable as I take it everyday. It also tastes amazing which is a bonus - Like a fruity syrup. My nails also won’t stop growing!

A big difference to my skin

My skin looks and feels a lot calmer. It can get quite red especially around my nose area. That has settled and Cutizana is the only thing I am doing differently. Really nice product.

Sukhpal Singh


Collagen as a tasty liquid.

A much better source and taste than my previous collagen and although cannot comment on such as muscle or hair improvements at this relatively early stage the skin (especially facially) appears healthier and somewhat firmer.

Qingwen Danning
Collagen help as a liquid.

More tasty than my previous collagen powder and also with the added hyaluronic acid and vitamin c anticipating a boost to my skin and hair especially during the winter months ahead.