COS DE BAHA TT Tranexamic Acid 10% Serum – Korean Dark Spot, Hyperpigmentation & Radiance Care

• Product type: Concentrated brightening and tone-correcting facial serum
• Size / volume: 30 ml / 1.0 fl. oz.
• Primary concerns: Hyperpigmentation, dark spots, post-blemish marks, uneven-looking skin tone, dullness and visible discoloration
• Skin types: Suitable for all skin types according to current brand guidance
• Key concentrations: Tranexamic Acid 10% and Niacinamide 2%
• Key ingredients: Tranexamic Acid, Niacinamide, Centella Asiatica Extract, EGCG, Glutathione, Madecassoside, Aloe Barbadensis Leaf Extract, Panthenol, Allantoin, Sodium Hyaluronate and Tocopheryl Acetate
• Cica complex: Brand positioning highlights four Cica components—Asiaticoside, Madecassic Acid, Asiatic Acid and Madecassoside
• Antioxidant care: Formulated with Epigallocatechin Gallate (EGCG), Glutathione, Vitamin E and botanical extracts
• Texture: Milky essence-serum texture that melts smoothly into the skin
• Finish: Hydrated, supple and luminous without an excessively heavy feel
• Formula notes: Fragrance is not listed in the verified current ingredient composition
• Usage: After cleansing and toning, apply an appropriate amount or 1–2 drops and gently absorb into the skin before moisturizer
• Frequency: Suitable for AM and PM use according to current brand guidance
• Routine placement: Apply after cleansing and toner and before moisturizer; use sunscreen during the daytime
• Origin: Made in South Korea
• Storage: Keep tightly closed and store away from excessive heat and direct sunlight
• Caution: For external use only. Avoid direct contact with the eyes. Discontinue use if persistent irritation or redness occurs and keep out of reach of children

Core Product Details

A High-Concentration Ritual for Stubborn-Looking Discoloration

COS DE BAHA TT Tranexamic Acid 10% Serum brings concentrated Korean brightening care to complexions marked by persistent-looking dark spots, post-blemish discoloration and uneven tone. At the center of the formula is an impressive 10% concentration of tranexamic acid, supported by 2% niacinamide and a carefully composed blend of soothing, hydrating and antioxidant ingredients. The result is a targeted South Korean skincare treatment created for those who desire greater visible clarity without surrendering the sensorial pleasure of a beautifully layered K-Beauty ritual.

10% Tranexamic Acid Takes Center Stage

Tranexamic acid defines the identity of TT Serum, appearing at a verified 10% concentration. COS DE BAHA positions this high-strength formula specifically around the appearance of hyperpigmentation, discoloration and uneven skin tone. Rather than resurfacing the complexion like an exfoliating acid, tranexamic acid provides a different approach to tone care, making this Korean dark spot serum an intriguing choice for routines focused on stubborn-looking marks and a clearer, more uniform appearance.

2% Niacinamide Refines the Look of Tone & Texture

A verified 2% concentration of niacinamide complements tranexamic acid, helping support a brighter, more balanced-looking complexion while contributing to skin-barrier care. Together, tranexamic acid and niacinamide create the serum's focused tone-refining core. It is an elegant pairing for anyone seeking a Korean hyperpigmentation serum that simultaneously considers radiance, visible texture, moisture balance and the overall appearance of healthy skin.

Cica & Panthenol Surround Potent Care with Comfort

Centella Asiatica-derived care gives this concentrated formula a more soothing dimension. The brand highlights a four-component Cica complex alongside Madecassoside, while Panthenol, Allantoin, Aloe Barbadensis Leaf Extract and Dipotassium Glycyrrhizate further condition the complexion. This balance is quintessentially K-Beauty: powerful-looking treatment goals are surrounded by ingredients selected to keep the skincare experience feeling considered, nurturing and refined.

EGCG, Glutathione & Vitamin E Elevate the Radiance Complex

Epigallocatechin Gallate, better known as EGCG, joins Glutathione and Tocopheryl Acetate in the antioxidant-rich supporting complex. Green tea, elderflower, bitter melon and edelweiss extracts further embellish the formula. These ingredients complement TT Serum's central brightening focus while giving the complexion additional antioxidant and conditioning care, helping transform a functional dark-spot treatment into a sophisticated Korean radiance ritual.

Hyaluronic Hydration Meets a Milky, Melting Texture

Targeted brightening does not mean abandoning moisture. Sodium Hyaluronate, glycerin and aloe contribute hydration while emollient ingredients give TT Serum its distinctive milky essence character. COS DE BAHA describes the texture as melting into the skin to reveal a luminous glow. The complexion is left feeling supple and comfortably moisturized, making the serum easy to embrace within a layered glass-skin routine.

Designed for Effortless AM & PM Layering

After cleansing and toning, apply an appropriate amount of serum before moisturizer. Current COS DE BAHA guidance permits both morning and evening application. When used during the day, finish with broad-spectrum sunscreen—particularly important for a routine devoted to maintaining an even-looking complexion and minimizing the visible return of discoloration. Introduce the concentrated formula gradually if your skin is unfamiliar with high-strength targeted treatments.

Reveal the Quiet Luxury of a Clearer, More Even-Looking Glow

Made in South Korea, COS DE BAHA TT Tranexamic Acid 10% Serum embodies a more deliberate approach to luminosity. Concentrated tranexamic acid and niacinamide meet Cica, hyaluronic hydration, EGCG and glutathione in a formula that treats radiant-looking skin as a ritual rather than an instant illusion. With every silky layer, the complexion is enveloped in focused care designed to reveal greater clarity, refinement and an irresistibly even-looking glow.

FAQ

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

TT Serum contains a verified 10% concentration of Tranexamic Acid. The formula also contains 2% Niacinamide, making it a particularly concentrated tone-correcting option within the COS DE BAHA serum collection.

Is COS DE BAHA TT Tranexamic Acid 10% Serum good for dark spots?

Yes. The serum is specifically formulated and positioned to improve the appearance of hyperpigmentation, dark spots, discoloration and uneven skin tone. Its core brightening complex combines 10% Tranexamic Acid with 2% Niacinamide, EGCG and Glutathione.

What is the difference between COS DE BAHA TT Serum and TN Serum?

TT is the more tranexamic-acid-focused formula, containing 10% Tranexamic Acid with 2% Niacinamide. COS DE BAHA TN Serum instead pairs 5% Tranexamic Acid with 5% Niacinamide, giving the two formulas distinctly different active ratios for tone-focused skincare routines.

Can COS DE BAHA TT Serum be used every day?

Yes. COS DE BAHA's current guidance identifies TT Serum for daily AM and PM use and for all skin types. Because it contains a high 10% concentration of Tranexamic Acid, those with sensitive or reactive skin may prefer to introduce it gradually and monitor individual tolerance.

Where should TT Tranexamic Acid Serum go in my Korean skincare routine?

Apply TT Serum after cleansing and toning and before moisturizer. If using it in the morning, complete the routine with sunscreen to protect the complexion and support a skincare regimen focused on visible discoloration and even-looking tone.

Make Clarity the Most Captivating Part of Your Ritual

Invite COS DE BAHA TT Tranexamic Acid 10% Serum into the ritual when ordinary brightening care no longer feels enough. Its concentrated South Korean formula pairs 10% Tranexamic Acid with Niacinamide, Cica, EGCG and Glutathione, transforming targeted dark-spot care into an elegant pursuit of skin that looks clearer, smoother, beautifully balanced and unmistakably luminous.