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Glycereth-18

Good

Humectant

Glycereth-18 at a glance

  • Synthetic, glycerin-based ingredient
  • Used as a humectant and skin-conditioning agent
  • Only needed in small concentration (up to 0.32%)
  • Ruled safe as used in cosmetics

Glycereth-18 description

Glycereth-18 is a synthetic glycerin-based ingredient used as a humectant (hydration-boosting agent) in skin care and other cosmetics formulations. It also functions as a skin-conditioning (moisturizing) agent. In 2021, the independent Cosmetic Ingredient Review Expert Panel deemed glycereth-18 safe as it is used in cosmetics. Their report looked at products using glycereth-18 in concentrations up to 0.32% maximum.

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Glycereth-18 references

  • The Cosmetic Ingredient Review, January 2021, pages 1-16

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings

Best

Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.

Good

Necessary to improve a formula's texture, stability, or penetration.

Average

Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.

Bad

There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.

Worst

May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.

unknown

We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.

Not rated

We have not yet rated this ingredient because we have not had a chance to review the research on it.