All Ingredients
15

Methylisothiazolinone

high

Quick verdict

High concern

Methylisothiazolinone skin safety dashboard

Methylisothiazolinone scores 15/100 across 1 product analyses. The most important acne and irritation checks are summarized first.

Comedogenic rating

5/5

High pore-clogging risk signal for acne-prone skin.

Fungal acne safe

No

Review the full formula before using on Malassezia-prone skin.

Pregnancy safe

Review

Ask a clinician before using during pregnancy or nursing.

Skin types to avoid

Acne-prone, Oily, Sensitive

Based on pore-clogging and irritation risk signals.

What is Methylisothiazolinone and why is it used?

We're still generating a detailed description for Methylisothiazolinone. Check back shortly - or scan a product containing this ingredient to speed things up.

Will Methylisothiazolinone clog my pores? (Comedogenic Rating)

Comedogenic Risk: 5/5

Methylisothiazolinone has an estimated comedogenic risk of 5/5 based on GlowLens ingredient scoring across 1 product analyses. A higher number means a stronger pore-clogging signal for acne-prone skin.

Known Side Effects and Allergies: is Methylisothiazolinone toxic or safe?

high

Methylisothiazolinone currently scores 15/100 with a high concern level. The main practical risk is skin irritation, sensitivity, or breakouts in formulas where this ingredient appears with other potentially irritating ingredients.

Is Methylisothiazolinone safe for pregnancy?

While our analysis gives Methylisothiazolinone a safety score of 15/100 with a high concern level, we recommend consulting your healthcare provider about any cosmetic ingredients during pregnancy or nursing. GlowLens provides general safety assessments - pregnancy-specific advice should come from your doctor or midwife.

Final Verdict: who should avoid Methylisothiazolinone?

Acne-prone, oily, and sensitive skin types should be cautious with this ingredient.

1 products analyzed containing MethylisothiazolinoneAnalyze a new product

Found in 1 Products

15

Power stick for her

high

A potent preservative frequently linked to allergic contact dermatitis and restricted in leave-on products in many regions.

Showing all 1 of 1 products

Frequently Asked Questions

What is Methylisothiazolinone and why is it used?
We're still generating a detailed description for Methylisothiazolinone. Check back shortly - or scan a product containing this ingredient to speed things up. Across 1 products in our database, Methylisothiazolinone appears in various formulations. Use our free skincare ingredient checker to see how it interacts with other ingredients in specific products.
Will Methylisothiazolinone clog my pores? (Comedogenic Rating)
Methylisothiazolinone has an estimated comedogenic risk of 5/5 based on GlowLens ingredient scoring across 1 product analyses. A higher number means a stronger pore-clogging signal for acne-prone skin.
Known Side Effects and Allergies: is Methylisothiazolinone toxic or safe?
Methylisothiazolinone currently scores 15/100 with a high concern level. The main practical risk is skin irritation, sensitivity, or breakouts in formulas where this ingredient appears with other potentially irritating ingredients.
Is Methylisothiazolinone safe for pregnancy?
While our analysis gives Methylisothiazolinone a safety score of 15/100 with a high concern level, we recommend consulting your healthcare provider about any cosmetic ingredients during pregnancy or nursing. GlowLens provides general safety assessments - pregnancy-specific advice should come from your doctor or midwife.
Final Verdict: who should avoid Methylisothiazolinone?
Acne-prone, oily, and sensitive skin types should be cautious with this ingredient.