COS DE BAHA T15 Serum – 15% Tranexamic Acid Korean Brightening & Dark Spot Serum

• Product type: Brightening facial serum
• Size / volume: 30 ml / 1.0 fl. oz.
• Primary concerns: Dark spots, hyperpigmentation, uneven-looking skin tone, dullness, dehydration and loss of clarity
• Skin types: Suitable for all skin types
• Key ingredients: 15% tranexamic acid, glutathione, panthenol, allantoin, sodium hyaluronate, hydrolyzed hyaluronic acid, green tea extract, elderflower extract, bitter melon fruit extract and edelweiss extract
• Texture: Clear, watery serum that absorbs quickly into the skin
• Finish: Lightweight, hydrated and naturally radiant-looking
• Usage: After cleansing and toning, apply an appropriate or moderate amount and gently pat into the skin until fully absorbed
• Routine placement: Apply before moisturizer in the morning and/or evening; use sunscreen during the daytime
• Origin: Made in South Korea
• Storage: Keep the container tightly closed and store away from excessive heat and direct sunlight
• Caution: For external use only. Avoid direct contact with the eyes and discontinue use if persistent irritation develops

Core Product Details

15% Tranexamic Acid for a More Even, Luminous Complexion

COS DE BAHA T15 Serum brings concentrated brightening care into an elegant South Korean skincare ritual with an impressive 15% tranexamic acid formula designed to address visible hyperpigmentation and uneven-looking tone. Created for complexions marked by stubborn dark spots, dullness or lingering discoloration, this lightweight Korean serum helps refine the appearance of the skin while encouraging a clearer, more harmonious radiance. Its watery texture glides effortlessly across the complexion and absorbs quickly, allowing potent tone-focused care to become an easy, indulgent part of a daily K-Beauty routine.

Tranexamic Acid & Glutathione for Targeted Dark Spot Care

At the heart of the formula is 15% tranexamic acid, a high concentration selected to help improve the appearance of hyperpigmentation and uneven skin tone. Glutathione complements this focused approach with antioxidant and brightening support, helping dull-looking skin appear fresher and more luminous. Together, these ingredients create a sophisticated treatment for those searching for a Korean dark spot serum that targets discoloration while preserving an elegant, lightweight skincare experience.

Multi-Layer Hydration for Plump, Supple-Looking Skin

Brightening care is balanced with an intelligent hydration system featuring sodium hyaluronate and hydrolyzed hyaluronic acid. These complementary forms of hyaluronic acid help attract and retain moisture at different levels of the skin's surface, creating a more supple, comfortably hydrated appearance. The serum feels almost weightless as it settles into the complexion, making it especially well suited to layered routines where hydration, radiance and clarity are desired without heaviness.

Panthenol & Allantoin Bring Comfort to the Ritual

Panthenol and allantoin add a soothing, conditioning dimension to the formula, supporting skin comfort while the serum works on visible tone concerns. Panthenol helps reinforce the feeling of hydrated, resilient skin, while allantoin contributes to a softer, calmer-looking finish. This balance between concentrated brightening ingredients and comforting hydration reflects a distinctly modern K-Beauty philosophy: visible results paired with a sensorial experience that feels refined enough for everyday use.

Botanical Antioxidants Inspired by Korean Skincare Precision

Green tea, elderflower, bitter melon and edelweiss extracts complete the composition with additional antioxidant and skin-conditioning support. Green tea is especially prized in Korean skincare for its antioxidant-rich profile, while the surrounding botanical extracts enhance the serum's carefully considered formula. Rather than overwhelming the skin with unnecessary complexity, COS DE BAHA T15 Serum focuses on a concise blend of brightening, hydrating and soothing ingredients that work together toward a more polished-looking complexion.

A Seamless AM or PM Brightening Step

After cleansing and toning, apply an appropriate amount of the serum and gently pat it into the skin until fully absorbed, then follow with moisturizer. COS DE BAHA specifies the T15 Serum for daily morning and evening use and recommends sunscreen during the daytime. Its clear, watery consistency makes it especially easy to layer beneath creams and SPF, allowing this Korean tranexamic acid serum to become a graceful bridge between treatment and hydration.

Where Clarity Becomes the New Expression of Glow

Made in South Korea, COS DE BAHA T15 Serum captures the modern K-Beauty pursuit of skin that appears not simply brighter, but beautifully balanced. The combination of 15% tranexamic acid, glutathione, dual hyaluronic acid and soothing panthenol turns targeted hyperpigmentation care into a ritual of refinement. Each application feels purposeful yet understated—a transparent veil of hydration and brightening care designed for the beauty lover who finds confidence in a complexion that looks clear, luminous and exquisitely even.

FAQ

What is COS DE BAHA T15 Serum used for?

COS DE BAHA T15 Serum is formulated to help reduce the visible appearance of dark spots and hyperpigmentation, improve uneven-looking skin tone and enhance overall brightness while supporting hydration and skin comfort.

How much tranexamic acid is in COS DE BAHA T15 Serum?

The formula contains 15% tranexamic acid, making it a concentrated Korean brightening serum specifically positioned for visible discoloration and uneven tone concerns.

Can I use COS DE BAHA T15 Serum every day?

Yes. COS DE BAHA's official directions specify daily morning and evening use for all skin types. Apply after cleansing and toning and before moisturizer, adjusting frequency if your individual skin prefers a more gradual introduction.

Is COS DE BAHA T15 Serum suitable for dry or dehydrated skin?

The formula contains sodium hyaluronate, hydrolyzed hyaluronic acid and panthenol to provide hydrating and conditioning support, making it particularly appealing for those who want to address uneven tone without sacrificing moisture.

Can COS DE BAHA T15 Serum be used under makeup?

Its clear, watery texture is designed to absorb quickly, making it easy to layer beneath moisturizer, sunscreen and makeup. Allow the serum to absorb before continuing with the rest of your morning routine for a smooth, comfortable finish.

Reveal the Clarity That Makes Your Glow Feel Effortless

Let COS DE BAHA T15 Serum become the quietly powerful step that transforms your daily ritual. With 15% tranexamic acid, luminous glutathione and moisture-loving hyaluronic acid, this South Korean brightening serum invites the complexion toward greater clarity, softness and radiance—an elegant expression of skin that looks beautifully cared for from every angle.