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Liquid Collagen Supplement



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Cutizana is the high strength liquid collagen supplement for radiant skin, fabulous hair and strong nails.

  • 10,000mg (10g) of marine 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 responsibly-sourced marine collagen in a single delicious serving.  Cutizana is also sold in beauty salons and clinics.

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Customer Reviews

Based on 3 reviews
Tina Maher

Noticed the difference after only a few days. Skin looks glowing and plump up. Will buy more.

Thank you Tina. That is high praise and we appreciate it. We advise people to expect changes typically after several weeks but it is good to hear Cutizana has had a positive impact for you. Thank you!

Blue Belle
No results so far

Have been taking it daily and still await some results in my hair and nails - a bit disappointed as the bottle is almost half empty now.

Hi Blue Belle, thank you and sorry to hear that. We don't typically expect to see changes in the first two weeks as tissue change is gradual. With 10g or 10,000mg of collagen in Cutizana, there aren't any brands we know which have more collagen per serving. Not all people will see changes. If at the end of the month you don't feel Cutizana is giving you the results you want, then get in touch please with your order number and we will give you a refund. Thank you again.

Sue Bowerman
Strong nails, clear skin and glossy hair

I’ve used this for 3 months now and will never be without it. Particularly with my nails I saw so much growth, strength. And love that it’s a natural product made by a gorgeous independent business. Amazing customer service too.

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

Cutis sana” means healthy skin and Cutizana is packed with more marine collagen and nutrients than collagen supplements which are twice the price.

The nutrients are dissolved in liquid which means that Cutizana has more nutrients than any tablet supplement where nutrients are compressed.  In fact, one tasty serving of Cutizana is the equivalent of twenty 500mg collagen tablets.

  • 10,000mg Hydrolyzed Collagen 1 & 3
  • Hyaluronic Acid
  • Silica & Gluconate
  • Vit B7 (Biotin) B5, B6, B12
  • Vit C

Combining additional nutrients with an already impressive ten grams of collagen, Cutizana delivers far more than sachet collagen supplements and all at an affordable price.

The nutrients in Cutizana are fully supported by scientific papers, see the ingredients tab for information and references to 41 published research articles.

Why Cutizana?

High strength Cutizana contains ten grams of type 1 and 3 marine collagen whose amino acids  are used in the proteins collagen, elastin and keratin.   Made from amino acids, collagen is the most abundant protein in the human body.


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.

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.

  • 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.


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.  Interesting fact, keratin is the substance found in the horn of the rhinoceros.


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.

When will I notice a difference?

Most people notice a difference within one and two months of taking Cutizana.  Typically you will see the first changes in your nails and depending on the condition of your skin and hair, you will notice changes there afterwards.

Since collagen production in our body declines with age, supporting your diet with a daily intake of collagen gives your body the building blocks it needs.

At the same time if you want to look better, we always recommend lifestyle upgrades.  In the same way that eating protein without exercising will not increase muscle mass, ensuring adequate daily hydration, eating a nutrient-filled diet and getting some exercise will help you in your all-round beauty goals.

Responsible Sourced

The collagen in Cutizana is made from a by-product of responsibly-sourced fish, namely the outer skin.  Once prepared, the hydrolized collagen has no taste of the sea.

How to take Cutizana

Cutizana comes in a single, tasty berry-flavoured liquid serving and can be taken neat or diluted with water.  You can even put it in your smoothie!  Once opened, store in the fridge.

Cutizana may be taken with Vitaliti and or Cartonica.

Each 500ml bottle is a 20 day supply.

Money Back Guarantee

We offer a 60 day money back guarantee on single bottles. That allows you to take Cutizana and in the unlikely event you feel it has not helped you to let us know.

The guarantee is on single bottle purchases, the return rate for all of our products is under 1%.

About Clinic Nutrition

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.  We supply liquid supplements to medical clinics and hair and beauty centres.

Allergen Advice: Contains extracts from fish. See label image for full list of ingredients.
Not suitable for vegetarians.

See and feel the difference with Cutizana.

Cutizana Nutrients

Below is an explanation of the function of each of the nutrients in Cutizana with 41 references and links to scientific research papers.

– Hydrolyzed Collagen Types 1 & 3
– Hyaluronic Acid (Vegan, Sodium Hyaluronate)
– Silica (Silicone Dioxide)
– Copper (as Gluconate)
– Vitamin C (L-Ascorbic Acid)
– Vitamin B5 (Pantothenate)
– Vitamin B6 (Pyridoxine HCL)
– Vitamin B7 (Biotin)
– Vitamin B12 (Methylcobalamin)

For reference collagen, elastin and keratin are made from amino acids and these are the amino acids found in each body area:

Skin: Serine, Glycine, Alanine, Citrulline, Threonine, Histidine, Aspartic acid, Valine, Ornithine, Arginine, Isoleucine, Lysine, Leucine, Tyrosine, Glutamic acid, Proline, Phenylalanine

Hair: Alanine, Arginine, Aspartic acid, Cysteine, Glutamic acid, Glycine, Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Proline, Serine, Threonine, Tyrosine, Valine

Nails: Arginine, Histidine, Lysine



It is the most abundant amino acid in collagen. About 33% of the collagen molecule is glycine. (1)


Glycine helps prevent unwanted skin darkening (hyperpigmentation) by blocking the enzymes necessary for the production of melanin. (2) That way, it helps keep your skin lighter and smooth. Besides, it is a critical component of the skin’s moisture retention system.


Glycine is one of the amino acids that make hair keratin. Its deficiency has been linked to about 15% of all cases of baldness in men. (3)


L-Proline and hydroxyproline contribute to about 23% of the collagen molecule. (1) They protect collagen against breakdown by proteolytic enzymes.


Proline protects your skin against UV rays and helps prevent premature skin ageing. (4) Besides, by increasing collagen production, they promote wound healing.


Proline deficiency is present in about 25% of all cases of baldness in women and 24% in men.  (3)


Alanine is found in both human skin and hair.


Alanine is a critical component of collagen. Its major role in the skin is to prevent the loss of water from the skin surface. Thus, sufficient alanine is key to preventing dryness and related skin problems, such as irritation.


Over 90% of men and women with thinning hair have alanine deficiency. (3)

L-glutamic acid

The body uses glutamic acid to produce proline and hydroxyproline. Both proline and hydroxyproline are the major constituents of collagen.


As a precursor of proline and hydroxyproline, glutamic acid is key to protecting the skin from the sun’s harmful UV rays.


Proline is necessary for keeping your hair strands strong. Proline deficiency is one of the causes of excessive hair loss and baldness in both men and women.


Arginine is one of the major components of structural proteins that make your skin, hair, and nail. The body uses arginine to produce proline and glutamate.


Arginine promotes wound healing and increases the production of collagen. (4) Supplementation with arginine, along with leucine and glutamine, improves skin texture, especially in women. (5)


Arginine is a powerful antioxidant with anti-ageing properties. It protects your hair against oxidative stress caused by colouring agents and bleach. (6)


A 6-week supplementation with arginine improves nail growth and hardness. (7)

L-aspartic acid or Aspartate

Unlike D-aspartic acid, L-aspartic acid is involved in the synthesis of structural proteins in the skin and hair.


The body uses aspartate to produce other amino acids – lysine, methionine, threonine, and isoleucine. (8) All these amino acids are essential for maintaining skin health and preventing UV-induced skin damage.


Deficiency of any of the four amino acids – lysine, methionine, threonine, and isoleucine – can cause excessive hair loss in both men and women.



Serine helps prevent the loss of moisture from the skin surface. That way, it hydrates the skin and prevents dryness – major cause of irritation.


Serine deficiency has been linked to hair thinning and baldness in both men and women.


L-lysine is found in the skin, hair, and nail.


Lysine is one of the building blocks of collagen. Deficiency of lysine can delay wound healing. (9) Lysine, along with zinc and herbs, can help treat facial cold sores. (10)


Lysine and iron therapy can help women with excessive hair loss. (11) Over half of people with telogen effluvium (TE) may have lysine deficiency. (7) TE causes temporary hair loss associated with stress or shock.


The body needs lysine to use. (12) Biotin (also called vitamin B7) is essential for nail growth and strength.


Leucine is a component of elastic. Elastin is a protein that makes your skin elastic. Low elastin levels cause wrinkles and sagging.


Supplementation with leucine, arginine, and glutamine improves skin texture and appearance. (5)


Leucine deficiency is common in women with hair loss and those with stress-related hair loss. (3)


Like leucine, valine is one of the building blocks of elastin – a protein that gives your skin elasticity.


When you are valine deficient, you cannot produce enough elastin. Low elastin levels are a major cause of wrinkles and saggy skin.


Valine deficiency is commonly seen in men and women with baldness and those with stress-related hair loss. (3)



Threonine prevents the loss of moisture from your skin. Thus, supplementing with threonine can be an effective measure to prevent skin dryness.


Threonine deficiency may cause excessive hair loss. Likewise, some people with stress-related hair loss may have low levels of this amino acid.


Phenylalanine is required for the synthesis of tyrosine. Tyrosine is used to make melanin – a pigment that gives your hair, skin, and eyes their natural colour.


Phenylalanine is essential for normal skin and hair colour. People with loss of skin colour (vitiligo) may benefit from phenylalanine supplementation. (13)


Phenylalanine deficiency may cause hair loss in some people. However, this is uncommon.



Isoleucine is used as a skin conditioning agent in many cosmetics. It is required for wound healing and may help people with eczema. (14, 15)


Isoleucine deficiency is common in people with excessive hair loss.


Hydroxylysine contributes to 1% of collagen. During collagen synthesis, lysine is converted to hydroxylysine in the presence of iron, oxygen, and vitamin C.


L-hydroxylysine is key to skin wound healing. (16)


Methionine improves the elasticity of skin and hair. Moreover, it makes your nails strong. As an antioxidant, methionine is revered for slowing down the aging process. (17)


Methionine is required for the synthesis of keratin. Keratin is a protein that protects the skin against damage by external stressors.

Methionine prevents the loss of moisture from the skin surface. Due to its powerful antioxidant activity, methionine protects the skin against the sun’s harmful UV rays.


Methionine deficiency is known to cause hair loss. Supplementation with methionine can prevent hair loss by increasing the absorption of zinc and selenium. (17)


Histidine is one of the three amino acids found in human nails.


Histidine is a potent antioxidant. It protects the skin from the harmful UV radiation.

Besides, histidine supplementation improves skin hydration and reduces itching in some forms of severe eczema. (18)


Histidine deficiency is commonly seen in people with thinning hair.


Histidine deficiency can cause anaemia, which is one the reasons for brittle nails and vertical ridges on the nails. (19)


Tyrosine is required for melanin production. Melanin is a pigment that gives your hair, skin, and eyes their natural colour.



Cysteine is a component of the skin’s hydration system and keratin. Thus, it helps your skin stay hydrated and intact. Besides, the antioxidant property helps protect your skin against damage by the UV rays.


L-cysteine strengthens the hair strands and prevents hair loss. ( 20) Cysteine deficiency causes brittle hair. (21)


Hyaluronic Acid

Hyaluronic acid (HA) is a critical component of the skin. It is found in both epidermis and dermis – the two layers of the skin above the subcutaneous tissues.

HA helps keep your skin moist by trapping water molecules in epidermis and dermis. UV exposure breaks down HA, which leads to dehydration and loss of elasticity. Furthermore, oral HA helps reduce wrinkles and skin roughness. (22)

According to a recent study, supplementation with HA improves hair appearance and texture. (23) Likewise, in another study, people taking HA with collagen reported strong, smooth and firm nails. (24)

Silica (Silicon Dioxide)

Silica is required for the synthesis of collagen as well as some enzymes that enhance skin strength and elasticity. (25) High levels of silica in the hair are shown to prevent hair loss and promote brightness.

Silica deficiency can cause soft and brittle nails. Notably, it may increase the risk of nail infections.

Copper (as Gluconate)

Copper is an essential nutrient for humans. It is a crucial nutrient required for the production of collagen and elastin. (26) Thus, taking copper can help reduce fine lines and wrinkles.

Copper deficiency may cause hair loss in some people. It is because copper plays a critical role in the production of cells that regulate hair growth. (27,28)

When taken with iron, zinc and amino acids, copper can make your nails strong, smooth, and shiny. (29)

Vitamin C (L-Ascorbic Acid)

Vitamin C has powerful antioxidant and skin-rejuvenating properties. As an antioxidant, it protects the cells from harmful chemical species called free radicals.

Vitamin C increases the production of collagen and elastin and helps maintain skin’s natural lipids. (30) Moreover, it is required for wound healing.

Because vitamin C is necessary for collagen production, its deficiency can cause hair loss and premature hair ageing. Furthermore, vitamin C promotes the absorption of iron from the food you eat. Iron is essential for hair growth.

Vitamin C deficiency can cause your nails to grow slowly and become brittle. (31)

Vitamin B5 (Pantothenate)

Vitamin B5 is a water-soluble vitamin. Your body uses this vitamin to make blood cells and release energy from the food you eat.

Pantothenate prevents premature greying of hair, promotes natural hair colour, and supports hair growth. (32) Due to its skin-softening and anti-inflammatory properties, pantothenate helps reduce acne lesions by as much as 67%. Moreover, pantothenate is used to promote nail growth. (33,34)

Vitamin B6 (Pyridoxine HCL)

This water-soluble B vitamin is required for protein, glucose, and fat metabolism. Besides, your body needs pyridoxine to make blood cells and neurotransmitters. The human body does not produce vitamin B6. Thus, you need to get it from your food or supplement.

Pyridoxine is essential for making collagen – a major component of the skin. Thus, the vitamin is crucial for maintaining healthy skin. (35,36) Its deficiency can lead to skin rashes, cracked lips, swollen tongue, and weakened immune system. Thankfully, taking a supplement can help clear the skin-associated symptoms. (37)

Vitamin B7 (Biotin)

Biotin is required for the metabolism of carbohydrates, fatty acids, and amino acids. A deficiency of biotin can cause skin rashes, brittle nails, and hair loss.

Biotin supplementation is effective in treating brittle splitting nails, hair loss, and premature greying of hair. (38,39,)

Studies show that biotin can reduce the production of sebum, an oily substance produced by the sebaceous glands. Thus, biotin can be used to control conditions caused by excessive sebum, such as dandruff and acne. (40)

Vitamin B12 (Methylcobalamin)

In humans, vitamin B12 deficiency can cause many skin and nail disorders. These include darkened skin, painful lumps on the skin, and nail streaks. (41)

Vitamin B12 is essential for maintaining your natural hair colour. Its deficiency may cause premature greying or whitening. (39)


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19 Vera-Aviles, M.; Vantana, E.; Kardinasari, E.; Koh, N.L.; Latunde-Dada, G.O. Protective Role of Histidine Supplementation Against Oxidative Stress Damage in the Management of Anemia of Chronic Kidney Disease. Pharmaceuticals 201811, 111.

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33 Yang M, Moclair B, Hatcher V, 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. Dermatol Ther (Heidelb). 2014;4(1):93-101. doi:10.1007/s13555-014-0052-3

34 Oh SJ, Kim JE, Ko JY, Ro YS. Therapeutic Efficacy of Combination Therapy Using Oral Cyclosporine with a Dietary Supplement (Pantogar®) in Twenty-Nail Dystrophy. Ann Dermatol. 2017;29(5):608-613. doi:10.5021/ad.2017.29.5.608

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38 Colombo VE, Gerber F, Bronhofer M, Floersheim GL. Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy. J Am Acad Dermatol. 1990 Dec;23(6 Pt 1):1127-32. doi: 10.1016/0190-9622(90)70345-i. PMID: 2273113.

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