1
Shared Ingredients
Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) vs Curology Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%)
Comparing Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) versus Curology Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%) — shared ingredients, unique components, comedogenic & irritancy ratings and unique benefits.
Comparison Overview
Product 1
Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%)
vs
Product 2
Curology Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%)
2
Unique to Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%)
2
Unique to Curology Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%)
Neither product contains highly comedogenic ingredients (rating ≥ 3), making both suitable for acne-prone skin. Both products have a similar irritancy profile (67% of rated ingredients score ≥ 3). Both products share 1 ingredient in common. Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) has 2 unique ingredients while Curology Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%) has 2.
Skin Safety Profile
0%
Comedogenic
2 rated
67%
Safe
3 rated
67%
Irritant
3 rated
Based on 3 rated ingredient s
0%
Comedogenic
1 rated
33%
Safe
3 rated
67%
Irritant
3 rated
Based on 3 rated ingredient s
Product Benefits & Effects
✓Positive — Beneficial effects !Caution — Monitor closely
Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) Benefits
✓Good For Oily Skin✓Acne Fighting✓Has Anti-aging properties✓Has skin-brightening properties✓Reduces dark spots!May cause irritation for some skin types✓Redness Reducing
Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%) Benefits
✓Redness Reducing✓Good For Oily Skin✓Acne Fighting✓Has skin-brightening properties
Ingredient Analysis Matrix
Scale 1 2 3 4 5 low → high
C = Comedogenic S = Safety risk IR = Irritancy
Shared Ingredients (1)
1
Ingredients — Unique to Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%)
2
Ingredients — Unique to Curology Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%)
Frequently Asked Questions
Is Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) better than Curology Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%) for sensitive skin?
By comparing Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) and Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%) side-by-side, you can identify which product has fewer irritants and a better safety profile for sensitive skin. Check the irritancy ratings in the comparison matrix above.
Which product, Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) or Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%), is safer for acne-prone skin?
The comparison tool highlights comedogenic (pore-clogging) ingredients in both Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) and Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%). Review the comedogenic ratings above to see which formulation is less likely to cause breakouts.
Do Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) and Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%) share any ingredients?
Our ingredient analysis matrix lists all shared ingredients as well as those unique to either Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) or Custom FormulaRX (Zinc pyrithione 0.25%, Clindamycin 1%, Niacinamide 4%).
Popular Skincare Comparisons
CeraVe Hydrating Facial Cleanser vs La Roche-Posay Toleriane Hydrating Gentle Face Cleanser
Compare
The Ordinary Niacinamide 10% + Zinc 1% vs The Inkey List Niacinamide Serum
Compare
Laneige Water Bank Blue Hyaluronic Cream vs Tatcha The Water Cream
Compare
Paula's Choice Skin Perfecting 2% BHA vs Drunk Elephant T.L.C. Framboos Glycolic Serum
Compare
Cosrx Advanced Snail 96 Mucin Power Essence vs Beauty of Joseon Repair Serum
Compare
Beauty of Joseon Relief Sun Rice & Probiotics vs Isntree Hyaluronic Acid Watery Sun Gel SPF50+
Compare