Side Effects
Skin reactions and adverse effects, with what causes them and how to recognize them.
15 side effects total.
Recently published side effects
- Film-Former Tightening Residue
Film-former tightening residue is the temporary tight, chalky, flaky, or makeup-disrupting finish that can happen with instant-tightening products.
Fragrance Allergic Contact DermatitisFragrance Allergic Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Essential Oil Allergic Contact DermatitisEssential Oil Allergic Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Preservative Allergic Contact DermatitisPreservative Allergic Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Niacinamide Flushing or BurningNiacinamide Flushing or Burning describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Allergic Contact CheilitisAllergic Contact Cheilitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Acid-Related Sun SensitivityAcid-Related Sun Sensitivity describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Irritant Contact DermatitisIrritant Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
All side effects
Browse every published side effects alphabetically.
- Acid-Related Sun Sensitivity
Acid-Related Sun Sensitivity describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
- Allergic Contact Cheilitis
Allergic Contact Cheilitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Benzoyl Peroxide BleachingBenzoyl Peroxide Bleaching is the color-loss problem that can happen when benzoyl peroxide touches towels, pillowcases, clothing, or hair.
- Essential Oil Allergic Contact Dermatitis
Essential Oil Allergic Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Eye-Area IrritationEye-area irritation is the cosmetic and comfort problem of stinging, watering, redness, dryness, flaking, or tightness after using an eye product.
- Film-Former Tightening Residue
Film-former tightening residue is the temporary tight, chalky, flaky, or makeup-disrupting finish that can happen with instant-tightening products.
- Fragrance Allergic Contact Dermatitis
Fragrance Allergic Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
- Irritant Contact Dermatitis
Irritant Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
- Mineral Filter White Cast
A visible white or chalky tint left on the skin by mineral sunscreens that contain zinc oxide and titanium dioxide.
- Niacinamide Flushing or Burning
Niacinamide Flushing or Burning describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Over-exfoliation IrritationOver-exfoliation Irritation is the visible and sensory pattern that can happen when exfoliating acids, retinoids, scrubs, and strong cleansing are stacked too aggressively, including under an overnight slug layer.
- Photoallergic Contact Dermatitis from UV Filters
A documented but uncommon dermatology phenomenon in which a sunscreen's UV-filter ingredient triggers a delayed eczematous skin reaction, but only on areas exposed to sunlight after the sunscreen was applied.
- Preservative Allergic Contact Dermatitis
Preservative Allergic Contact Dermatitis describes a reaction pattern that can look like burning, itching, redness, rash, peeling, swelling, or discomfort after skincare exposure.
Retinoid DermatitisRetinoid Dermatitis is the irritation pattern that can appear when a topical retinoid such as adapalene is introduced too quickly or used more often than skin tolerates.
Sunscreen Eye StingingSunscreen eye stinging is the burning, watering, or uncomfortable feeling that can happen when SPF migrates into or very near the eyes.