Hi Teri - Thanks for your question! You'll use both Serums each AM & PM. First apply Advanced Night Repair Serum, then Perfectionist Pro Rapid Brightening Treatment with Ferment² + Vitamin C. We hope this helps!

Hi Monique - Thanks for reaching out! Apply 2-3 pumps, AM and PM, on clean skin followed with your moisturizer. If you are using Advanced Night Repair Multi-Recovery Complex Serum at night, apply this first, then follow with Perfectionist Pro Rapid Brightening Treatment with Ferment² + Vitamin C and your moisturizer. During the day, to protect against future hyperpigmentation, follow with a sunscreen with high SPF protection, like our Perfectionist Pro SPF 45. The higher the SPF level, the more protection against future hyperpigmentation.

I can mixte this serum in diamonds serum ?

Thanks for your question, Thao. Perfectionist Pro Rapid Brightening Treatment with Ferment² + Vitamin C is ideal for anyone looking for an ultra-lightweight, ultra-hydrating serum that will give skin an overall brighter, more radiant look while targeting multiple types of dark spots and improves the appearance of uneven skin tone. Get a closer look here: estee.cm/PPGlow.

Thanks for your question, Luna. Yes, you may pair the two. Re-Nutriv Ultimate Diamond Transformative Brilliance Serum is infused with our rare and precious Black Diamond Truffle Extract, as well as vitamin C, and powerful Youth-Sustaining Technology developed from over a decade of research. This formula reveals brighter, more radiant, glowing skin that noticeably feels firmer and more supple. It also helps to reduce spots including acne marks, plus helps even skin tone and minimizes the look of pores. Come chat with an expert Beauty Advisor to discover which formula is best for your skin's needs: estee.cm/ELCHATUS

Thank you for your interest! Perfectionist Pro Rapid Brightening Treatment with Ferment² + vitamin C is perfect for anyone, all skin types, who wants a potent treatment that will help brighten & even skin tone and reduce the look of dark spots & discoloration with just one 50 ml bottle, all while keeping skin intensely hydrated. You'll enjoy dewy, glowing skin; radiance and luminosity. Click here: estee.cm/PPGlow to learn more.

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Hi Ankita - Thanks for your interest. While we don't have a comprehensive list of products that don't contain parabens, we'd be happy to provide specific product information with an email to consumercare-us@gcc.esteelauder.com.