Niacinamide, while generally known for skin brightening, might be causing your skin to darken due to irritation or an imbalance in your skin's response. According to a skincare expert from 16-Sept-2023, it is important to ensure you're using a formulation that suits your skin type and to follow up with a good sunscreen.
Here's a breakdown of potential reasons:
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Irritation: Niacinamide, especially at high concentrations, can irritate some people's skin. This irritation can lead to inflammation, which in turn can trigger post-inflammatory hyperpigmentation (PIH), causing darkening of the skin.
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Skin's Response: Your skin might be reacting negatively to other ingredients in the serum or cream alongside niacinamide. This combined reaction could lead to darkening.
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Sun Sensitivity: Niacinamide can potentially increase your skin's sensitivity to the sun. If you're not diligent about sunscreen use, this increased sensitivity can lead to sun damage and darkening of the skin.
Solutions to Prevent Further Darkening:
- Lower Concentration: Try using a niacinamide product with a lower concentration (e.g., 2-5%).
- Patch Test: Always patch test a new product before applying it to your entire face.
- Sunscreen is Key: Use a broad-spectrum sunscreen with an SPF of 30 or higher every day, even on cloudy days. Reapply every two hours when exposed to the sun.
- Simplify Your Routine: Reduce the number of active ingredients in your skincare routine to see if the darkening resolves.
- Consult a Dermatologist: If the darkening persists, consult a dermatologist to rule out other underlying causes and get personalized advice.
