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Retinol
Retinol helps renew the skin by boosting cell turnover. It improves collagen production and reduces acne scars.
Niacinamide
Niacinamide reduces skin inflammation by improving the skin barrier function. It lightens the scars and evens skin tone.
Effectiveness
Retinol helps unclog pores, while niacinamide helps treat hyperpigmentation on the skin.
Skin tolerance
Niacinamide is gentle and suitable for sensitive skin types, while retinol can cause redness, peeling skin and dryness.
Result
Niacinamide shows results after consistent use of 4-8 weeks. Retinol shows results after -12 weeks, depending upon concentration.
Side effects
Niacinamide is safe for daily long-term use, while retinol can increase sun sensitivity; it must be used with sunscreen.
Bottomline
Retinol is more effective in reducing acne scars, and niacinamide helps reduce mild pigmentation. Layer both on alternate days.
Information Credits
This information is taken from Medical News Today. However, it is always advisable to consult a dermatologist before applying anything directly to your face.