https://skincare.niva.blog/blog Niva Skin is a practical skincare blog for simple routines, skin types, cleansing, moisturizing, sunscreen, and ingredient basics. en-US contact@skincare.niva.blog (Niva Skin editorial) contact@skincare.niva.blog (Niva Skin editorial) Mon, 05 Jan 2026 00:00:00 GMT https://skincare.niva.blog/blog/how-to-patch-test-skincare-products https://skincare.niva.blog/blog/how-to-patch-test-skincare-products Patch testing cannot predict every reaction, but it can reduce obvious surprises before a product goes all over the face. Mon, 05 Jan 2026 00:00:00 GMT contact@skincare.niva.blog (Niva Skin editorial) patch testnew productsensitive skin