Can I use more than one serum?
Yes. Many customers use one serum in the morning and another at night. If you layer them, apply the thinnest texture first and let each one absorb for about 30 seconds.
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Which POISELLE serum is right for me?Choose by your main skin goal: Copper Peptide Serum for fine lines and firmness, GHK-Cu + PDRN Serum for firmness and texture, PDRN Salmon DNA Serum for texture, Matrixyl 3000 Serum for hydration, and 10% Argireline Serum for expression lines. Not sure? Take our 60-second skin routine quiz.How do I use POISELLE serums?After cleansing and toning, apply 1–3 pumps or a few drops to your face and neck. Gently massage until absorbed, then follow with moisturizer, and sunscreen during the day. Full directions are on each product page under “How to use”.Can I use more than one serum?Yes. Many customers use one serum in the morning and another at night. If you layer them, apply the thinnest texture first and let each one absorb for about 30 seconds.Can I use peptides with retinol or vitamin C?Yes. Peptides layer well with most actives. A simple routine is vitamin C in the morning and retinol at night, with your POISELLE serum in both.Are POISELLE serums suitable for sensitive skin?Our serums are made for daily use on all skin types. If your skin is sensitive, patch test on a small area first, and stop use if irritation occurs.Are POISELLE products cruelty-free?Yes. POISELLE serums are cruelty-free.When will I see results?Skin feels hydrated right away. Most people notice a smoother look within a few weeks of twice-daily use. Peptides work best with consistent use over 6–8 weeks.Can I use POISELLE if I am pregnant or nursing?Please consult your healthcare provider before starting any new skincare product while pregnant or nursing.Where should I store my serum?Keep the bottle tightly closed in a cool, dry place, away from direct sunlight. Keep out of reach of children.