Ingredient glossary
Methylpropanediol
On your shelf ✓What Methylpropanediol does for your skin, who it suits, and what to watch for.
INCI: Methylpropanediol · Also: 2-methyl-1,3-propanediol
In short: Methylpropanediol delivers hydration and solvent, suits most skin types, and the evidence behind it is moderate.
- What it does
- Hydration, solvent
- Best for
- Most skin types
- Evidence
- Moderate
The molecule
The Glow take
Quiet, essential, and nothing to fear.
Methylpropanediol keeps a product safe to use from the first pump to the last, at tiny amounts. Not something you pay a premium for.
— Maya
What it does
- hydration
- solvent
- mildness
moderate evidenceManufacturer technical data describes methylpropanediol as a cosmetic grade branched glycol used at roughly 2 to 25 percent as humectant and solubiliser. Published safety data is limited but indicates low acute toxicity and good dermal tolerance.
On a label: usually effective at 2-25%.
Who it's for, and who should skip it
Tends to suit
- dry
- normal
- combo
- oily
- dehydrated
- sensitive
Approach with care
- rare allergy
- Clogs poresLow
- Irritation riskLow
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveSuits
Take extra care if any of these apply to you: rare allergy.
Where it fits in your routine
Plays well with
- humectants
- preservatives
Methylpropanediol, answered
Is Methylpropanediol safe during pregnancy?
Yes. Methylpropanediol is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.
Who should avoid Methylpropanediol?
Approach Methylpropanediol with care if any of these apply to you: rare allergy.
What concentration of Methylpropanediol actually works?
Methylpropanediol tends to do its job in the 2 to 25% range. Much lower and it is likely underdosed.
This, for every label you own
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