At Kin, we focus on equipping estheticians with effective skincare solutions that deliver visible results while supporting healthy skin function. The Corthe Brightening Line combines advanced active ingredients with calming botanicals to brighten, balance, and strengthen the skin barrier. Here's a quick product formulation breakdown and how you can use them to achieve the best outcomes for your clients.
Corthe Brightening Ampoule
This lightweight, fast-absorbing ampoule is the heart of the brightening ritual. Its star ingredients include Niacinamide, a multitasking powerhouse known for reducing hyperpigmentation, minimizing pore appearance, and strengthening the skin barrier. Complementing niacinamide is Ascorbyl Glucoside, a stable vitamin C derivative that brightens and fights free radicals without irritation. The formula also features a blend of botanical extracts like Mallow, Peppermint, and Licorice Root, which soothe inflammation and calm redness — essential for clients with sensitive, reactive skin. Hydration is supported by humectants like glycerin and betaine, ensuring the skin feels balanced and comfortable.
Corthe Brightening Cream
This rich yet non-greasy cream seals in moisture while delivering potent brightening benefits. It combines Arbutin, a gentle tyrosinase inhibitor, with Niacinamide to help reduce dark spots and even skin tone. Emollients like Meadowfoam Seed Oil and Shea Butter deeply nourish and reinforce the skin barrier, critical for maintaining long-term clarity and resilience. The cream also contains multiple peptides, such as Copper Tripeptide-1 and Palmitoyl Pentapeptide-4, which stimulate collagen production and improve skin texture. Antioxidants from Pomegranate and Grape Fruit Water protect against environmental damage, helping to prevent new pigmentation from forming.
Corthe Spot Lumedic
Designed for targeted brightening, the Spot Lumedic is a corrective treatment for stubborn discoloration and post-inflammatory marks. Key ingredients include Niacinamide for its brightening and barrier-strengthening properties, and Licorice Root Extract, a natural anti-inflammatory that calms irritated skin while lightening dark spots. Ceramide NP restores the lipid barrier, crucial for clients with compromised or sensitive skin. This formula supports healing and clarity with a mix of soothing botanicals like Houttuynia Cordata and Acerola Fruit Extract, which bring antioxidant protection and skin-brightening effects.
Ion-To Ampoule (Used with Iontophoresis)
The Ion-To Ampoule is uniquely formulated to enhance penetration when paired with iontophoresis, a technique that uses a gentle electric current to drive charged molecules deeper into the skin. This ampoule contains Niacinamide, Ceramide NP, and hydrating ingredients like Hyaluronic Acid and Panthenol that support barrier repair and hydration. Dipokton Glycyrrhizate and Allantoin soothe irritation, making it ideal for calming compromised skin during treatments. Using iontophoresis helps these actives bypass the skin’s surface barrier more effectively, optimizing brightening, anti-inflammatory, and reparative effects—especially important for clients with pigmentation concerns who need gentle yet powerful results.
Brightening Cream Mask
This mask is a rich, comforting step to boost hydration and brighten dull skin. It combines Ascorbyl Tetraisopalmitate, a lipid-soluble vitamin C derivative, with Panthenol and Tocopheryl Acetate (Vitamin E) to brighten and nourish while defending against oxidative stress. Emollients like Cetyl Ethylhexanoate and Caprylic/Capric Triglyceride provide a protective moisturizing layer, while Allantoin soothes and calms sensitivity. This mask is perfect for a finishing ritual to seal in actives and give the skin a radiant glow.
Brightening Sheet Mask
This multi-benefit sheet mask delivers concentrated brightening and soothing botanicals in a form that maximizes contact time and absorption. The formulation features Niacinamide for brightening, alongside Centella Asiatica and Madecassoside, which calm inflammation and support barrier repair. Botanical antioxidants like Rosmarinus Officinalis (Rosemary) and Chamomile Flower Extract protect and soothe stressed skin, while hydrating ingredients like Sodium Hyaluronate and its crosspolymers lock in moisture. The inclusion of Glutathione, a potent antioxidant and skin brightener, adds another layer of defense against environmental damage and uneven tone.
