Ingredient review
Ampd-Isostearoyl Hydrolyzed Collagen
INCI: AMPD-ISOSTEAROYL HYDROLYZED COLLAGEN
A gentle collagen derivative that adds a light film to skin, helping it feel smooth and hydrated without heavy residue.
In plain English
This ingredient is a modified version of collagen, a protein naturally found in skin. By attaching a fatty acid (isostearic acid) and breaking the collagen into smaller pieces (hydrolyzing), it becomes more compatible with skin and helps form a thin, invisible layer that locks in moisture and makes skin feel soft. It's often used in anti-aging and moisturizing products for its conditioning benefits.
Quick decision guide
Useful, but context matters
Ampd-Isostearoyl Hydrolyzed Collagen 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 Ampd-Isostearoyl Hydrolyzed Collagen.
- 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
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A semi-synthetic compound created by chemically bonding isostearic acid (a fatty acid) to hydrolyzed collagen (collagen broken into smaller peptides). This modification improves its ability to spread on skin and form a protective film.
How it works
When applied, it deposits a thin, flexible film on the skin's surface. This film helps reduce water loss (transepidermal water loss, or TEWL) and gives a temporary smoothing effect by filling in fine lines and rough texture. It also helps other ingredients adhere better to skin.
Pros
Lightweight hydration
Forms a breathable film that helps lock in moisture without feeling heavy or greasy, making it suitable for all skin types including oily skin.
Smoothing effect
Temporarily fills in fine lines and rough patches, giving skin a more even texture and a soft-focus appearance.
Cons and cautions
Temporary results
The smoothing and moisturizing effects are only present while the product is on the skin and wash off with cleansing, so consistent use is needed for ongoing benefits.
Animal-derived source
Collagen is typically sourced from animal hides or bones, which may not align with vegan or cruelty-free preferences.
Best for
- People with dry or dehydrated skin looking for a lightweight moisturizing boost
- Those who want a smoothing effect in anti-aging products without heavy oils
Use caution if
- Individuals with known allergies to collagen or fatty acid derivatives (rare)
- Those who prefer exclusively plant-based ingredients (this is animal-derived collagen)
Usage tips
Safety summary
Considered safe for topical use in cosmetics at typical concentrations. Rare allergic reactions are possible, but it is generally non-irritating and non-comedogenic.
Research notes
Limited peer-reviewed studies specifically on AMPD-Isostearoyl Hydrolyzed Collagen, but hydrolyzed collagen and fatty acid derivatives are well-documented as safe skin conditioning agents. The film-forming and moisturizing properties are supported by general cosmetic science.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Moisturizers, Anti-aging creams, Hair conditioners
- Environmental note
- Collagen sourcing may involve animal agriculture, which has environmental impacts. Some manufacturers are exploring lab-grown or plant-based alternatives.
Good to know
- This ingredient is often listed near the end of an ingredient list because it's used in low concentrations.
- It is not the same as 'collagen' in supplements—topical collagen derivatives work on the skin's surface, not internally.
Common questions
What is Ampd-Isostearoyl Hydrolyzed Collagen in beauty products?
This ingredient is a modified version of collagen, a protein naturally found in skin. By attaching a fatty acid (isostearic acid) and breaking the collagen into smaller pieces (hydrolyzing), it becomes more compatible with skin and helps form a thin, invisible layer that locks in moisture and makes skin feel soft. It's often used in anti-aging and moisturizing products for its conditioning benefits.
What does Ampd-Isostearoyl Hydrolyzed Collagen do in a beauty product?
When applied, it deposits a thin, flexible film on the skin's surface. This film helps reduce water loss (transepidermal water loss, or TEWL) and gives a temporary smoothing effect by filling in fine lines and rough texture. It also helps other ingredients adhere better to skin.
Is Ampd-Isostearoyl Hydrolyzed Collagen safe for most people?
Considered safe for topical use in cosmetics at typical concentrations. Rare allergic reactions are possible, but it is generally non-irritating and non-comedogenic.
Who should be careful with Ampd-Isostearoyl Hydrolyzed Collagen?
Individuals with known allergies to collagen or fatty acid derivatives (rare) Those who prefer exclusively plant-based ingredients (this is animal-derived collagen)
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.