Rate My SPF

3-Aminopropane Sulfonic Acid

What 3-Aminopropane Sulfonic Acid is & what it does

3-Aminopropane sulfonic acid, also known as homotaurine, is a small amino-sulfonic-acid molecule used in skincare. It is commonly included as a soothing and skin-conditioning agent, and amino-sulfonic compounds of this type are often associated with calming and barrier-supporting roles. In formulas it typically works alongside humectants and other conditioning agents. No specific concerns are flagged for this ingredient here.

What is 3-Aminopropane Sulfonic Acid?

It is a small amino-sulfonic-acid molecule, also known as homotaurine. In skincare it is commonly used as a soothing and skin-conditioning agent.

What does 3-Aminopropane Sulfonic Acid do in skincare?

It is generally included for its calming, conditioning role, and amino-sulfonic compounds of this type are often associated with comforting and barrier-supporting effects. It typically works alongside humectants and other conditioning agents.

Is 3-Aminopropane Sulfonic Acid safe?

It is generally considered well tolerated at cosmetic levels, and no specific concerns are flagged for it in this catalog. Sensitive users can patch test as a precaution.

Sunscreens with 3-Aminopropane Sulfonic Acid

We rate 4 sunscreens that contain it:

← All ingredients