NOON Aesthetics CYS-Brightening Complex + MelanoShield™ is a targeted wash-off treatment formulated with 6% Cysteamine Hydrochloride for the appearance of stubborn dark spots, uneven skin tone and hyperpigmentation. NOON's MelanoShield™ technology is intended to improve comfort and minimize the characteristic sulfur odor of cysteamine. This product is not an ordinary leave-on serum.
Professional skincare consultation highly recommended. Available for direct online purchase at $88; a consultation can help determine if cysteamine is suitable for your pigmentation concerns and provide a schedule alongside other treatments.
IMPORTANT: WASH OFF AFTER APPROXIMATELY ONE HOUR
Apply a thin layer to affected areas once daily. Leave on for ABOUT ONE HOUR, THEN WASH OFF COMPLETELY. DO NOT leave this product on overnight. Sensitive skin may need to start with a shorter contact time and gradually work up to approximately one hour, following specialist instructions. After reaching the desired result, NOON recommends maintenance twice weekly.
Manufacturer-Supported Key Ingredients
Cysteamine Hydrochloride 6%: Primary pigmentation-focused active for the visible appearance of persistent uneven tone and discoloration. MelanoShield™: NOON's patent-pending comfort technology for cysteamine use. Hyaluronic Acid Complex (11D): Includes hydrolyzed hyaluronic acid, sodium hyaluronate, sodium acetylated hyaluronate and other moisture-supporting forms. Ascorbyl Propyl Hyaluronate: Vitamin C/hyaluronic acid derivative for antioxidant skin conditioning. Troxerutin and Ginkgo Biloba Leaf Extract: Antioxidant and skin-conditioning ingredients. Gluconolactone, tocopherol and Swertia Chirata Extract: Additional formula components. NOON's marketing materials mention 4% niacinamide, but the full ingredient list published on its product page does not show niacinamide; the presence and concentration of niacinamide should be checked against the current retail package and are not confirmed here.
Benefits and Ideal Clients
Designed for clients with stubborn dark spots, uneven pigmentation, sun-related discoloration and the appearance of melasma-related discoloration. Consistent sunscreen use, especially tinted formulas with iron oxides for melasma-prone skin, supports an overall pigment-management regimen.
Pairs Well With
MicroSoft Cleanser: Gentle cleansing before and after the treatment as directed. Optimal Moisturizing Guardian: Moisturizing barrier support after CYS has been washed off. TXA-Brightening Complex: Another pigment-focused serum that can be introduced on a separately planned schedule after tolerance has been established. Broad-spectrum tinted sunscreen: Daily sun and visible-light protection for pigmentation-prone skin.
Morning Routine
Gentle cleanser → moisturizer → broad-spectrum SPF 30 or higher, ideally tinted with iron oxides for melasma-prone clients. Reapply sunscreen according to its label. If CYS use is prescribed for the morning, follow its wash-off directions and apply moisturizer and sunscreen afterward; never treat it as a leave-on daytime serum.
Evening Routine
As directed by NOON, apply CYS-Brightening Complex as a thin layer to affected areas once daily for about one hour, then wash off → gentle cleanser as needed → moisturizer. Do not sleep with the treatment on unless your qualified skincare provider gives directions specific to the actual product label.
Alternating Use and Maintenance
Begin with shorter contact time if sensitive and increase gradually as tolerated. Once target results are reached, NOON recommends twice-weekly maintenance. Avoid introducing strong retinol, Lacto 10, Lacto-C 15, Lacto-S or several concentrated pigment treatments on the same evening until your skincare specialist establishes a tolerated schedule. Cysteamine may sting, redden or irritate skin; stop use and seek guidance for persistent irritation.
Safety and Post-Procedure Precautions
For external use only. Avoid eyes, lips, broken skin, eczema flares and freshly treated areas. Do not use immediately after CO2 resurfacing, other lasers, IPL, microneedling, chemical peels or surgery without your provider's explicit clearance; the timing to restart varies by procedure and healing stage. Consult a qualified healthcare professional regarding use during pregnancy or breastfeeding, as safety information is limited. Check the package for all ingredients and avoid use with known ingredient allergies. Keep out of reach of children and protect skin from the sun.
Size: 15 mL / 0.5 fl oz. Price: $88. Purchase: Available online; professional consultation highly recommended. This is a wash-off product, not an overnight serum.