Paba ●
TL;DR. This ingredient functions primarily as a UVB sunscreen filter, absorbing short-wave ultraviolet radiation in leave-on sun-care products. It is largely historical in modern formulas because many markets and retailers have moved away from it.
What does Paba do in a cosmetic formula?
This ingredient functions primarily as a UVB sunscreen filter, absorbing short-wave ultraviolet radiation in leave-on sun-care products. It is largely historical in modern formulas because many markets and retailers have moved away from it.
Is Paba clean?
From a clean-beauty perspective, this ingredient has significant friction because it is associated with sensitization and photoallergy concerns and is commonly flagged by restricted-substance policies. It is not considered a low-concern sunscreen option by many current clean standards.
Is Paba sustainable?
This material is typically made through synthetic chemical routes rather than direct renewable sourcing. It is not a standout Green Chemistry ingredient, and its environmental profile is less favorable than simpler, readily biodegradable cosmetic staples.
Is Paba COSMOS-approved?
It is not permitted as a sunscreen active under COSMOS-natural or COSMOS-organic standards. Its synthetic origin, sensitization profile, and poor fit with preferred biodegradable, lower-concern chemistry place it outside strong COSMOS and Green Chemistry alignment.
How does Paba work chemically?
The molecule is a small aromatic compound with an amine group and a carboxylic acid group, giving it UVB absorption and pH-dependent solubility. Historical sunscreen use reached relatively high active levels, but formulation use has declined because of sensitization potential, staining issues, and cleaner-label replacement by other UV-filter systems.
Last updated 2026-05-14