Methyl Gluceth-20



Methyl Gluceth-20 at a glance

  • Functions as a moisturising and conditioning ingredient
  • According to its manufacturer, it has a low irritation potential
  • Made by combining polyethylene glycol with glucose (sugar)
  • Ruled safe as used in cosmetics

Methyl Gluceth-20 description

Methyl gluceth-20 is made by combining polyethylene glycol with glucose to create a new compound. In cosmetics, it functions as a humectant and conditioning ingredient. According to its manufacturer, methyl gluceth-20’s (also known by its trade name, Glucam ™ E-20) low irritation potential makes it ideal for sensitive skin formulations. The independent Cosmetic Ingredient Review panel has found methyl gluceth-20 safe as used in cosmetics, where concentrations range from 4–15%, with rinse-off products typically containing greater amounts.

Methyl Gluceth-20 references

  • International Journal of Toxicology, Supplement, November 2016, pages 12S–40S

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


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


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


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


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


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


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Not rated

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