2
Shared Ingredients
Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) vs Curology Custom RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4%
Comparing Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) versus Curology Custom RX Azelaic acid 8% Tranexamic acid 5% 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 RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4%
1
Unique to Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%)
10
Unique to Curology Custom RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4%
Neither product contains highly comedogenic ingredients (rating ≥ 3), making both suitable for acne-prone skin. Curology Custom RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4% scores lower on irritancy, which may suit sensitive skin better. Both products share 2 ingredients in common. Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) has 1 unique ingredient while Curology Custom RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4% has 10.
Skin Safety Profile
0%
Comedogenic
2 rated
67%
Safe
3 rated
67%
Irritant
3 rated
Based on 3 rated ingredient s
0%
Comedogenic
6 rated
100%
Safe
12 rated
17%
Irritant
12 rated
Based on 12 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 RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4% Benefits
✓Good For Oily Skin✓Acne Fighting✓Has skin-brightening properties✓Reduces dark spots!May Worsen Oily Skin for some skin types✓Redness Reducing
Ingredient Analysis Matrix
Scale 1 2 3 4 5 low → high
C = Comedogenic S = Safety risk IR = Irritancy
Shared Ingredients (2)
1
Ingredients — Unique to Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%)
2
Ingredients — Unique to Curology Custom RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4%
Frequently Asked Questions
Is Curology Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) better than Curology Custom RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4% for sensitive skin?
By comparing Custom Formula (Tretinoin 0.015% Azelaic acid 5% Niacinamide 4%) and Custom RX Azelaic acid 8% Tranexamic acid 5% 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 RX Azelaic acid 8% Tranexamic acid 5% 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 RX Azelaic acid 8% Tranexamic acid 5% 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 RX Azelaic acid 8% Tranexamic acid 5% 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 RX Azelaic acid 8% Tranexamic acid 5% Niacinamide 4%.
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