Yes, both ingredients can be used in the same skincare routine. Vitamin C is best applied in the morning, while Niacinamide can be used in the evening or after Vitamin C, depending on your routine.

Most users notice visible improvements within 2–6 weeks of consistent use. Results may vary depending on your skin type and concerns.

Absolutely! All Glossay products are cruelty-free and are never tested on animals. We are committed to ethical and responsible skincare.

Store your products in a cool, dry place away from direct sunlight and heat to maintain their effectiveness and quality.

Yes, you can layer compatible serums. Apply them from the lightest to the heaviest consistency and always follow with a moisturizer. If you're unsure, contact our skincare team for personalized guidance.