When something sits on your face for 10–20 minutes at a time, you want to know it's safe. That's why we sent our mask's silicone material to SGS — one of the world's leading testing companies — for three rigorous biocompatibility tests. Here's what they found.

1. Cytotoxicity Test — "Will it harm my cells?"

Scientists placed lab-grown cells (L-929 mouse connective tissue cells) in contact with our mask material for 24 hours. Then they measured how many cells survived.

A cell viability above 70% means the material is non-toxic. Our result: 94.13% of cells remained healthy — well above the safety threshold.

2. Skin Irritation Test — "Will it cause redness or rash?"

Using the standard rabbit skin patch method, researchers applied our mask material extract to skin and monitored for redness (erythema) and swelling (edema) over 72 hours.

The Primary Irritation Index (PII) ranges from 0 (no irritation) to 8 (severe). Our result: PII = 0 — zero irritation in both polar and non-polar test conditions.

3. Sensitization Test — "Will I develop an allergy?"

Using the Guinea Pig Maximization Test (GPMT), researchers repeatedly exposed test animals to our mask material over several weeks to check if an allergic reaction would develop.

A sensitization rate of 0% means no allergic response was triggered. Our result: 0% sensitization in both polar and non-polar test groups.

Testing Credentials