COLLEEN ROTHSCHILD 15% Vitamin C Brightening Serum — Stable THD Ascorbate + Niacinamide for Radiance, Lightweight Absorbing

This serum combines a stabilized form of Vitamin C (THD ascorbate) with niacinamide and supportive botanicals to target dullness, refine texture, and help skin appear brighter over time. The formula is created to absorb quickly without heavy residue, making it easy to layer under moisturizer and sunscreen as part of a daily routine. Its gentle profile is intended for a wide range of skin types seeking a smoother, more even-looking complexion.

How does this serum address dark spots and dullness?

The 15% Vitamin C derivative in this serum works to tackle the visible signs of discoloration and lackluster tone by supporting brighter-looking skin. Niacinamide complements Vitamin C by promoting an even surface and improving overall clarity. Together with botanical extracts, the blend helps deliver a fresher, more luminous appearance when used consistently.

• 15% THD ascorbate: a stable form of Vitamin C formulated for brightness
• Niacinamide: smooths texture and supports even tone
• Botanical extracts: add antioxidant support and radiance
• Lightweight finish: absorbs fast so brightening benefits show quickly

Will this serum feel heavy or interfere with makeup?

The texture is lightweight and lightly creamy, created to sink into skin rapidly without leaving a greasy film. It layers well beneath moisturizers and makeup, making it suitable for morning use prior to SPF application. Many users find it keeps skin comfortable while delivering a brightening effect.

• Fast-absorbing serum texture
• Non-greasy finish suitable for layering
• Applies easily under moisturizer and sunscreen
• Designed for daily morning or evening use

Is this serum appropriate for sensitive or combination skin?

The formulation aims to be effective yet gentle, with niacinamide included to support balanced-looking skin. While it’s suitable for many skin types, those with very reactive skin should patch-test first or introduce gradually. If irritation occurs, discontinue use and consult a skincare professional.

• Gentle actives chosen for broad skin-type compatibility
• Start with a patch test if you have reactive skin
• Introduce slowly to assess tolerance
• Stop use if persistent irritation develops

How should I use this serum for best results?

Apply the serum to clean skin in the morning, then follow with a moisturizer and a broad-spectrum sunscreen. Consistent daily use helps realize the product’s brightening and smoothing benefits. Store out of direct heat and tightly capped to maintain stability.

• Use on cleansed skin each morning
• Follow with moisturizer and SPF for daytime protection
• Can be used in evening routines as tolerated
• Keep bottle closed and stored in a cool place

Who is this for: This serum is intended for anyone wanting to minimize the appearance of dullness, refine uneven texture, and promote a more luminous-looking complexion. Its lightweight, stable Vitamin C plus niacinamide formula suits those seeking visible radiance without heavy feel—ideal for normal, combination, dry, and many sensitive skin types who follow up with sunscreen during the day.

Ingredients

WATER (AQUA), TETRAHEXYLDECYL ASCORBATE (VITAMIN C), GLYCERIN, PENTYLENE GLYCOL, NIACINAMIDE, ERGOTHIONEINE, ANGELICA ACUTILOBA (JAPANESE) ROOT EXTRACT, PUNICA GRANATUM (POMEGRANATE) SEED EXTRACT, SUPEROXIDE DISMUTASE, MALPIGHIA GLARBRA (ACEROLA CHERRY) FRUIT EXTRACT, TERMINALIA FERDINANDIANA (KAKADU PLUM) FRUIT EXTRACT, HYLOCEREUS UNDATUS (DRAGON) FRUIT EXTRACT, TOCOPHERYL ACETATE (VITAMIN E), HYALURONIC ACID, SODIUM HYALURONATE, DIMETHICONE, PHENOXYETHANOL, HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, BUTYLENE GLYCOL, ISOHEXADECANE, MALTODEXTRIN, ACACIA SENEGAL GUM, XANTHAN GUM, FRAGRANCE (PARFUM), ETHYLHEXYLGLYCERIN, POLYSORBATE 60, SODIUM METABISULFITE, SODIUM HYDROXIDE, BENZYL ALCOHOL, BENZOIC ACID.