PEG-7
A polyethylene glycol. It holds water, dissolves actives and adjusts texture. Inert, well tolerated.
Evidence by route
Topical application
A functional humectant and solvent. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
PEG-7 (INCI: PEG-7) is a short-chain polyethylene glycol that works as a humectant and solvent. It pulls water into the formula, helps dissolve poorly soluble actives and fragrance, and smooths the texture of creams and emulsions. This is a functional ingredient, not a skincare active. On its own it gives no visible result on skin – its job is in distribution and product stability. Judging it by active efficacy would be a mistake, since it plays a technical part. Applied topically, PEG-7 has no meaningful systemic uptake, so it can be used during pregnancy and breastfeeding without concern. Tolerance is high. Irritation and allergy potential are both low, so it suits sensitive skin well. It is an inert ingredient that most skin accepts without a reaction.
Frequently asked questions
Is PEG-7 safe during pregnancy?
PEG-7 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is PEG-7 for?
PEG-7 suits: normal, dry, combination, oily, sensitive.
What is PEG-7 and what does it do in cosmetics?
A polyethylene glycol.
What's the INCI name for PEG-7?
The INCI name is PEG-7.
See PEG-7 in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
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