Zerin

ZER

8/10

Concern level

High concern

Likely a misspelling of CERESIN (ceresin wax), a purified fossil/mineral wax used mainly as a structuring, thickening, binding, and film-forming ingredient in sticks, balms, and other anhydrous cosmetics. It is generally considered low-risk and is used for texture, stiffness, and stability rather than direct skin treatment. ([pubchem.ncbi.nlm.nih.gov](https://pubchem.ncbi.nlm.nih.gov/compound/Ceresin?utm_source=openai))

Pore-clogging

Low

Pregnancy

Safe

Regulatory

No data

Chemical Properties

Typical Concentration

1.00% - 30.00%

CAS Number: 8001-75-0

Skin Type Compatibility

dry skin6/10

oily skin4/10

sensitive skin7/10

acne prone4/10

mature skin6/10

normal skin7/10

Interactions

incompatible with: No well-established ingredient incompatibilities for normal cosmetic use, Avoid relying on it as an active at low pH or high pH because pH is not relevant to its function, May increase heaviness when combined with other highly occlusive waxes/oils in acne-prone formulas

Risks & Warnings

Generally low hazard in cosmetic use, but may contribute to heaviness or occlusiveness in leave-on products and could be problematic for very acne-prone or easily congested skin in rich balms. As a waxy hydrocarbon mixture, it is not intended as a treatment active. ([specialchem.com](https://www.specialchem.com/cosmetics/inci-ingredients/ceresin?utm_source=openai))

Vegan Cruelty-Free

Found In Products

Dr. Jart+

Cicapair™ Soothing Color Correcting Treatment SPF 30 with Centella Asiatica Extracts