Sodium Hydroxymethylglycinate in skincare: is it safe?
What it is
Sodium Hydroxymethylglycinate is an ingredient Klyva classifies under Preservative.
Is it safe?
Sodium Hydroxymethylglycinate is permitted in cosmetics but restricted by concentration under EU rules — Klyva flags it at moderate concern. A preservative that can release formaldehyde over time; a sensitiser for some skin.
Source: EU Cosmetics Regulation 1223/2009 Annex V (permitted preservatives, with limits)
Quick answers
Frequently asked questions
Is Sodium Hydroxymethylglycinate safe?
Sodium Hydroxymethylglycinate is permitted in cosmetics but restricted by concentration in the EU, so Klyva flags it. A preservative that can release formaldehyde over time; a sensitiser for some skin. Source: EU Cosmetics Regulation 1223/2009 Annex V (permitted preservatives, with limits).
Does Sodium Hydroxymethylglycinate clog pores?
Sodium Hydroxymethylglycinate is not flagged as pore-clogging by Klyva — though absence from the list isn't proof it's non-comedogenic for every skin.
Evidence
- EU Cosmetics Regulation 1223/2009 Annex V (permitted preservatives, with limits)