Tromethamine is a synthetic skincare and cosmetic ingredient used as a pH adjuster and fragrance ingredient. It helps maintain the skin's normal pH, preventing irritation and ensuring optimal product absorption. Tromethamine is generally considered safe for use in cosmetics, but it may cause skin irritation in some individuals.
pH adjusting: Tromethamine helps maintain the skin's normal pH, preventing irritation and ensuring optimal product absorption.
All skin types except those with an identified allergy to it.
Tromethamine may cause skin irritation, redness, and itching. It can also cause eye irritation, such as burning, stinging, and watering. In some cases, tromethamine may also cause allergic reactions, such as hives, swelling, and difficulty breathing.
Tromethamine should be used with caution in people with sensitive skin or allergies. It should also be avoided by people who are pregnant or breastfeeding. Tromethamine should not be used on broken or irritated skin.
Synthetic
Safe for use in cosmetics and personal care products.
Low hazard ingredient
Tromethamine is used in concentrations between 0.00009–3.7%. It is also used in medical applications to reduce acidity.