Polyurethane-35

Baycusan C 1004
Good
Safe
Pores
0/5
Irritancy
0/5
FA Safe
✅ Yes
Pregnancy
✅ Safe
Vegan
✅ Yes

Science & Benefits

Polyurethane-35 is a high-molecular-weight film-forming polymer. It creates a breathable, flexible, and non-occlusive barrier on the skin's surface. This 'biomimetic' shield prevents the adhesion of environmental pollutants (PM2.5) and heavy metals, which are known to trigger the lipid peroxidation that causes inflammatory acne. It is zero-comedogenic and significantly reduces transepidermal water loss (TEWL). It is a strategic 'urban defense' humectant that maintains hydration while protecting the pores from external pro-oxidant triggers.