Ingredient review
Myristyl 3-Glyceryl Ascorbate
INCI: MYRISTYL 3-GLYCERYL ASCORBATE
A gentle, stable vitamin C derivative that brightens skin and fights free radicals without the irritation of pure ascorbic acid.
In plain English
Myristyl 3-glyceryl ascorbate is a form of vitamin C that has been chemically modified to be oil-soluble and more stable. Unlike pure vitamin C (ascorbic acid), it doesn't break down quickly in air or light, and it's less likely to sting or irritate sensitive skin. Once absorbed, your skin converts it into active vitamin C, which helps even out skin tone, boost collagen, and protect against environmental damage.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
Myristyl 3-Glyceryl Ascorbate 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 Myristyl 3-Glyceryl Ascorbate.
- 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 derivative of vitamin C (ascorbic acid) where a myristyl (fatty alcohol) and glyceryl group are attached to make it stable and oil-soluble.
How it works
After application, enzymes in the skin cleave off the myristyl and glyceryl groups, releasing active ascorbic acid. This active form then works as an antioxidant, neutralizing free radicals, and as a cofactor for collagen synthesis, helping to firm and brighten the skin.
Pros
Stable and long-lasting
Unlike pure vitamin C, this derivative resists oxidation from air and light, so your product stays effective longer on the shelf.
Gentle on skin
It has a near-neutral pH and doesn't require the low pH that makes pure ascorbic acid sting, making it suitable for sensitive or compromised skin.
Cons and cautions
Potentially less potent
Because it must be converted by the skin, it may deliver a slightly weaker antioxidant effect than an equal concentration of L-ascorbic acid.
Higher price point
The chemical modification process makes this ingredient more expensive to produce, which can raise the cost of the final product.
Best for
- Anyone seeking a stable, gentle vitamin C option
- Sensitive or reactive skin types
- Those new to vitamin C skincare
Use caution if
- People looking for the strongest possible vitamin C effect (consider L-ascorbic acid instead)
Usage tips
Safety summary
Myristyl 3-glyceryl ascorbate is considered safe for topical use. It has low irritation and sensitization potential, and no known toxicity at cosmetic concentrations. The Cosmetic Ingredient Review (CIR) panel has not specifically reviewed this derivative, but related ascorbyl esters are well-tolerated.
Research notes
Clinical studies show that ascorbyl esters can effectively deliver vitamin C to the skin, improving brightness and collagen markers. However, head-to-head comparisons with L-ascorbic acid are limited, and most evidence is from small-scale or in-vitro studies.
Common label clues
- Typical concentration
- 1–5% in leave-on products
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and most major markets. Not classified as a drug ingredient.
- Common uses
- Serums, Moisturizers, Eye creams
- Environmental note
- Semi-synthetic production; no known significant environmental concerns at typical cosmetic use levels.
Good to know
- This ingredient is often listed as 'Ascorbyl Myristyl Glyceryl' on some labels.
- It works well alongside vitamin E and ferulic acid for enhanced antioxidant protection.
Common questions
What is Myristyl 3-Glyceryl Ascorbate in beauty products?
Myristyl 3-glyceryl ascorbate is a form of vitamin C that has been chemically modified to be oil-soluble and more stable. Unlike pure vitamin C (ascorbic acid), it doesn't break down quickly in air or light, and it's less likely to sting or irritate sensitive skin. Once absorbed, your skin converts it into active vitamin C, which helps even out skin tone, boost collagen, and protect against environmental damage.
What does Myristyl 3-Glyceryl Ascorbate do in a beauty product?
After application, enzymes in the skin cleave off the myristyl and glyceryl groups, releasing active ascorbic acid. This active form then works as an antioxidant, neutralizing free radicals, and as a cofactor for collagen synthesis, helping to firm and brighten the skin.
Is Myristyl 3-Glyceryl Ascorbate safe for most people?
Myristyl 3-glyceryl ascorbate is considered safe for topical use. It has low irritation and sensitization potential, and no known toxicity at cosmetic concentrations. The Cosmetic Ingredient Review (CIR) panel has not specifically reviewed this derivative, but related ascorbyl esters are well-tolerated.
Who should be careful with Myristyl 3-Glyceryl Ascorbate?
People looking for the strongest possible vitamin C effect (consider L-ascorbic acid instead)
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.