Ingredient review
C10-18 Triglycerides
INCI: C10-18 Triglycerides
A gentle, non-greasy emollient that helps soften and smooth skin without clogging pores.
In plain English
C10-18 Triglycerides are a mixture of fats (triglycerides) derived from plant oils like coconut or palm. They act as a skin softener and moisturizer, helping to keep the skin barrier healthy and hydrated. Because they are lightweight and non-greasy, they are popular in lotions, creams, and serums for all skin types, including oily and acne-prone skin.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is relatively strong for its common cosmetic role.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- natural
- Evidence
- strong
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
C10-18 Triglycerides 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 C10-18 Triglycerides.
- 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
strongThere is a stronger practical or research basis for the ingredient role described here.
What it is
A blend of triglycerides with carbon chain lengths from 10 to 18, typically sourced from coconut or palm kernel oil. It is a clear, odorless oil that mimics the skin's natural lipids.
How it works
It sits on the skin's surface to reduce water loss (transepidermal water loss, or TEWL) and fills in gaps between skin cells, making the skin feel smoother and softer. It also helps other ingredients spread evenly.
Pros
Lightweight feel
Unlike heavier oils, C10-18 Triglycerides absorb quickly without leaving a greasy residue, making them ideal for daytime use and under makeup.
Low irritation risk
This ingredient is very gentle and rarely causes stinging or redness, even on compromised or sensitive skin.
Cons and cautions
Sustainability concerns
If sourced from palm oil, it may contribute to deforestation unless certified sustainable. Look for RSPO-certified versions.
Limited humectant power
It is an emollient, not a humectant, so it does not actively draw water into the skin. It works best paired with ingredients like glycerin or hyaluronic acid.
Best for
- People with dry or dehydrated skin
- Those with sensitive or reactive skin
- Anyone looking for a non-comedogenic moisturizer
Use caution if
- Individuals with a known allergy to coconut or palm oil derivatives (rare)
Usage tips
Safety summary
C10-18 Triglycerides are considered very safe for topical use. They have low irritation and comedogenic potential, and are well-tolerated by most skin types. No significant safety concerns have been reported in cosmetic concentrations.
Research notes
Triglycerides are well-studied as skin barrier components. Research shows they help reduce TEWL and improve skin hydration. Their safety profile is supported by decades of use in personal care products.
Common label clues
- Typical concentration
- 1% to 20% depending on formula type
- Regulatory status
- Approved for cosmetic use globally, including by the FDA (as a component of generally recognized as safe substances) and the EU CosIng database.
- Common uses
- Moisturizers, Serums, Cleansers, Sunscreens, Lip products
- Environmental note
- Sourcing from palm oil can impact rainforests; choose products with RSPO-certified or sustainably sourced palm derivatives when possible.
Good to know
- C10-18 Triglycerides are often used as a replacement for mineral oil in 'natural' formulations.
- They are stable and resist oxidation, giving products a longer shelf life.
Common questions
What is C10-18 Triglycerides in beauty products?
C10-18 Triglycerides are a mixture of fats (triglycerides) derived from plant oils like coconut or palm. They act as a skin softener and moisturizer, helping to keep the skin barrier healthy and hydrated. Because they are lightweight and non-greasy, they are popular in lotions, creams, and serums for all skin types, including oily and acne-prone skin.
What does C10-18 Triglycerides do in a beauty product?
It sits on the skin's surface to reduce water loss (transepidermal water loss, or TEWL) and fills in gaps between skin cells, making the skin feel smoother and softer. It also helps other ingredients spread evenly.
Is C10-18 Triglycerides safe for most people?
C10-18 Triglycerides are considered very safe for topical use. They have low irritation and comedogenic potential, and are well-tolerated by most skin types. No significant safety concerns have been reported in cosmetic concentrations.
Who should be careful with C10-18 Triglycerides?
Individuals with a known allergy to coconut or palm oil derivatives (rare)
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.