Can marine collagen help psoriasis sufferers?
Scarlett Gray
BNutrDiet (Hons), APD, SDA
Reviewed by Scarlett Gray · About Scarlett
Accredited Practising Dietitian with Dietitians Australia (APD200526). Accredited Sports Dietitian and Credentialled Eating Disorder Clinician. First Class Honours in Nutrition and Dietetics from the University of Newcastle.
Scarlett Gray
BNutrDiet (Hons), APD, SDA
Accredited Practising Dietitian with Dietitians Australia (APD200526). Accredited Sports Dietitian and Credentialled Eating Disorder Clinician. First Class Honours in Nutrition and Dietetics from the University of Newcastle.
Can marine collagen help psoriasis sufferers?
Collagen is one of the most well-known supplements for supporting skin — many people take it because of the research on skin hydration, elasticity and the appearance of fine lines. Because of its role in skin structure, marine collagen often comes up in conversations about other skin conditions, including psoriasis. This article looks honestly at what the current research actually shows about collagen and psoriasis, where the evidence gaps are, and how to think about it alongside proper medical care.
What is psoriasis?
Psoriasis is a chronic autoimmune condition where skin cells reproduce more quickly than normal — the immune system mistakenly targets healthy skin cells, causing patches of thickened, red or scaly skin. It can appear anywhere on the body, varies significantly in severity, and is generally a lifelong condition managed with medical treatment. Treatment approaches include topical creams, phototherapy, and systemic medications depending on the type and severity.
What does the research show on collagen and psoriasis?
To be direct: at time of publication, there are no published clinical trials examining oral marine collagen supplementation as a treatment for psoriasis. Where collagen has been studied in relation to skin conditions, it has typically been either topical (patch) collagen applied to the skin, or general skin-outcome research in populations without psoriasis.
Where there is more encouraging evidence: skin healing
The evidence base on marine collagen for general skin healing and structure is stronger. A 2022 review published in PMC concluded that "upon review of the literature, it is evident that marine collagen is a versatile compound capable of healing skin injuries of varying severity, as well as delaying the natural human aging process." The review notes that marine collagen from fish sources has been investigated across several studies for potential effects on skin wound healing rates, with proposed mechanisms including support for fibroblast and keratinocyte migration, vascularisation and epidermal growth.
Alongside this, published research on marine collagen in humans has shown effects on skin elasticity, hydration and the appearance of fine lines — the well-established skin-outcome evidence base.
None of this is direct evidence for psoriasis. It's the mechanistic background that some people with psoriasis find relevant to think about, particularly around general skin structure and repair. It doesn't change the position on psoriasis specifically, where the direct research simply hasn't been done.
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Diet is one of the areas people with psoriasis often experiment with. Rather than focusing on individual "anti-inflammatory" foods, the pattern with the most published research is an anti-inflammatory dietary approach overall — typified by the Mediterranean diet, which is high in vegetables, fruit, whole grains, oily fish, olive oil and nuts. Some published research has looked at Mediterranean-style eating patterns in relation to psoriasis severity, with encouraging findings. As always, a discussion with your GP or a dietitian is a good way to work out what fits your specific situation and existing treatment plan.
How much collagen and what format?
For general skin outcomes, the clinical research on marine collagen consistently uses around 10g (10,000mg) of hydrolysed collagen peptides per day. Kollo Premium Liquid Marine Collagen delivers this dose per daily sachet. Collagen is available as tablets, powders and liquids — the format matters less than consistency; whichever one you'll actually take every day is the one that works.
Is collagen safe to take?
Marine collagen is a food-derived protein and is generally well tolerated. Common mild side effects when starting a new supplement can include mild digestive changes such as heartburn. Marine collagen is not suitable for anyone with a fish allergy.
Kollo Premium Liquid Marine Collagen
Kollo Premium Liquid Marine Collagen delivers 10,000mg of Naticol® marine collagen peptides per daily sachet, alongside vitamin C, a B vitamin complex (B1, B5, B6, B12) and l-lysine. It is Informed Choice certified — every batch is independently tested for over 250 prohibited substances. Many customers use Kollo as part of a broader daily routine focused on skin, hair and joint support, which is where the evidence for marine collagen is strongest.
Frequently Asked Questions
Can marine collagen help with psoriasis?
There is currently no published clinical research on oral collagen supplementation as a treatment for psoriasis. Where collagen has been studied in relation to skin healing, the research has been on general wound healing rather than psoriasis specifically. Some people with psoriasis take marine collagen as part of a broader daily routine for general skin support, but it is not a treatment for psoriasis. Any decision to take a supplement alongside psoriasis care should be made with your GP or dermatologist.
What does the research say about collagen and skin healing generally?
A 2022 review of the literature concluded that marine collagen shows potential for supporting skin healing, with proposed mechanisms including effects on fibroblast and keratinocyte migration and epidermal growth. Human studies on marine collagen have also shown effects on skin elasticity, hydration and the appearance of fine lines. This is general skin-outcome evidence rather than psoriasis-specific evidence.
Is marine collagen safe for people with psoriasis?
Marine collagen is a food-derived protein and is generally well tolerated. However, if you have psoriasis or any medical condition, or take regular prescription medication, please speak with your GP or dermatologist before starting a new supplement.
Should I stop my psoriasis treatment and try collagen instead?
No. There is no evidence that collagen can replace psoriasis treatment. Any changes to your treatment plan should be discussed with your GP or dermatologist. Supplements should be considered as a possible addition to a routine, not a replacement for medical treatment.
How much collagen should I take?
The clinical research on marine collagen for skin outcomes consistently uses around 10g (10,000mg) of hydrolysed collagen peptides per day. Results in skin research typically emerge over 8-12 weeks of consistent daily use.
For the complete picture on liquid marine collagen — dose, sources, research and how to choose the right supplement — read our complete guide to liquid marine collagen.
Kollo Health was co-founded by Jenni Falconer — TV presenter, Smooth Radio breakfast host, ten-time London Marathon runner and host of the RunPod podcast. Read her story and why she created Kollo.
