Sodium Dehyrdoacetate
Sodium Dehyrdoacetate
SOD
8/10
Concern level
High concern
Sodium dehydroacetate is the sodium salt of dehydroacetic acid, used primarily as a broad-spectrum cosmetic preservative. It helps inhibit bacteria and fungi in water-containing formulas, especially leave-on and rinse-off products. It is generally used at low levels and is valued for odorless, colorless preservation with relatively low sensitization potential compared with some legacy preservatives.
Pore-clogging
Non-comedogenic
Pregnancy
Safe
Regulatory
No data
Chemical Properties
Molecular Weight
190.14 g/mol pH Range
4.00 - 8.00Typical Concentration
0.10% - 0.60%CAS Number: 4418-26-2
Skin Type Compatibility
dry skin7/10
oily skin8/10
sensitive skin5/10
acne prone8/10
mature skin7/10
normal skin8/10
Interactions
incompatible with: May be less suitable in very high-pH systems, Can require support from a broader preservative system depending on formula design
Risks & Warnings
Can cause mild skin or eye irritation, especially in sensitive or compromised skin. Rare hypersensitivity reactions have been reported. Use caution in leave-on products for very reactive skin. Data reviewed by CIR support safety at current cosmetic use levels, with reported maximum use around 0.6% in cosmetics.
Vegan Cruelty-Free
