Ingredient review
Dogfish Skin Extract
INCI: SCYLLII PELLIS EXTRACT
A marine extract that may help hydrate and condition skin, but research is limited and sustainability concerns exist.
In plain English
Dogfish skin extract is a natural ingredient taken from the skin of small sharks called dogfish. It contains compounds like amino acids and peptides that can help keep your skin moisturized and feel smooth. Think of it as a gentle, ocean-derived moisturizer that works by supporting your skin's natural barrier.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- natural
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Dogfish Skin Extract is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Dogfish Skin Extract.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
Dogfish skin extract is a water-soluble extract derived from the skin of the spiny dogfish (Squalus acanthias), a small shark species. It is rich in proteins, amino acids, and minerals that are believed to support skin hydration and texture.
How it works
In cosmetic products, dogfish skin extract acts as a humectant, meaning it attracts water to the skin's surface. It also provides amino acids that can help strengthen the skin's natural moisture barrier, reducing water loss and improving skin softness.
Pros
Natural humectant
Helps attract and retain moisture in the skin, making it feel softer and more hydrated.
Skin conditioning
Provides amino acids that may support the skin's natural barrier, improving overall texture.
Cons and cautions
Limited research
There are very few peer-reviewed studies on dogfish skin extract for cosmetic use, so its benefits are not well-established.
Sustainability concerns
Sourcing from dogfish raises ethical and environmental questions, as some shark populations are vulnerable to overfishing.
Best for
- People with dry or dehydrated skin looking for a natural humectant
- Those interested in marine-derived ingredients
Use caution if
- Individuals with known allergies to fish or shark products
- Those concerned about marine sustainability
Usage tips
Safety summary
Generally considered safe for topical use with low irritation risk, but individuals with fish allergies should avoid it. Long-term safety data is limited.
Research notes
Evidence for dogfish skin extract is mostly anecdotal or based on ingredient composition. No major clinical trials confirm its efficacy in human skin.
Common label clues
- Typical concentration
- Typically used at 0.5% to 2% in leave-on products
- Regulatory status
- Approved for use in cosmetics in the EU and US, but not specifically evaluated by the FDA for safety or efficacy.
- Common uses
- Moisturizers, Anti-aging creams, Serums
- Environmental note
- Sourcing from dogfish may impact marine ecosystems; look for sustainably harvested or certified sources if available.
Good to know
- Dogfish skin extract is sometimes listed under the INCI name Squalus acanthias skin extract
- It is not the same as squalane, which is derived from shark liver oil but is now often plant-based
Common questions
What is Dogfish Skin Extract in beauty products?
Dogfish skin extract is a natural ingredient taken from the skin of small sharks called dogfish. It contains compounds like amino acids and peptides that can help keep your skin moisturized and feel smooth. Think of it as a gentle, ocean-derived moisturizer that works by supporting your skin's natural barrier.
What does Dogfish Skin Extract do in a beauty product?
In cosmetic products, dogfish skin extract acts as a humectant, meaning it attracts water to the skin's surface. It also provides amino acids that can help strengthen the skin's natural moisture barrier, reducing water loss and improving skin softness.
Is Dogfish Skin Extract safe for most people?
Generally considered safe for topical use with low irritation risk, but individuals with fish allergies should avoid it. Long-term safety data is limited.
Who should be careful with Dogfish Skin Extract?
Individuals with known allergies to fish or shark products Those concerned about marine sustainability
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.