Ingredient guide
Tromethamine
INCI name · tromethamine
In short
Tromethamine is a pH adjuster that keeps formulas stable and comfortable on the skin. It helps products stay effective without making them strongly alkaline.
Best used
Anytime
What it is
Organic amine used as a pH adjuster and buffering agent in aqueous formulas. Maintains product stability without the strong alkalinity of sodium hydroxide. Common in gentle, low-irritation formulations.
Evidence receipt
No linked study yet
No verified study is linked to this exact ingredient and route. The guidance below describes conventional use; it is not evidence of efficacy.
Also found as
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Common questions
What does Tromethamine do in skincare?
It stabilises a product’s pH so the texture and active ingredients remain consistent.
Is Tromethamine suitable for sensitive skin?
Yes, it’s commonly used in gentle formulas because it adjusts pH without being harsh.
Where is Tromethamine typically used?
You’ll see it in moisturisers, sunscreens, and serums that rely on steady pH for performance.
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