COS DE BAHA RT Retinol Tranexamic Serum – Korean Retinol, Dark Spot & Radiance Care

• Product type: Retinol, bakuchiol and tranexamic acid facial serum
• Size / volume: 30 ml / 1.0 fl. oz.
• Primary concerns: Fine lines, wrinkles, uneven-looking texture, hyperpigmentation, dark spots, uneven skin tone, loss of elasticity and dullness
• Skin types: Suitable for all skin types according to current manufacturer guidance; formulated as a lower-strength retinol option for beginners and sensitive skin, although patch testing and gradual introduction are recommended
• Key concentrations: 2% bakuchiol, 3% tranexamic acid, 2% beta-arbutin and 0.02% retinol (660 IU)
• Key ingredients: Bakuchiol, tranexamic acid, retinol, arbutin, aloe vera leaf extract, panthenol, sodium hyaluronate, squalane, Ceramide NP, madecassoside, asiaticoside, madecassic acid, asiatic acid, adenosine, tocopherol and tocopheryl acetate
• Texture: Lightweight emulsion-serum texture with moisturizing and conditioning ingredients
• Finish: Hydrated, smooth, supple and more radiant-looking
• Formula notes: Multi-active formula combining retinol with bakuchiol and pigmentation-focused tranexamic acid and arbutin, supported by Cica components, Ceramide NP, panthenol and hyaluronic acid
• Usage: Apply a small to moderate amount after cleansing and toning and gently pat until absorbed
• Frequency: Begin with evening use once or twice weekly and increase gradually according to skin tolerance
• Routine placement: Use at night after cleansing and toner and before moisturizer; apply broad-spectrum sunscreen consistently during the daytime
• Origin: Made in South Korea
• Storage: Keep tightly closed and store in a cool place away from excessive heat and direct sunlight
• Caution: For external use only. Patch test before first use and introduce retinol gradually. Avoid direct eye contact and application to irritated or compromised skin. Reduce frequency or discontinue use if persistent irritation occurs

Core Product Details

Four Targeted Actives, One Refined Evening Ritual

COS DE BAHA RT Retinol Tranexamic Serum brings together some of modern skincare's most coveted tone- and age-focused ingredients in one sophisticated South Korean formula. With 2% bakuchiol, 3% tranexamic acid, 2% beta-arbutin and a measured 0.02% retinol concentration, this Korean retinol serum takes a multi-dimensional approach to fine lines, uneven texture, discoloration and loss of radiance. The result is an evening treatment created not around aggressive transformation, but around consistent refinement and a progressively smoother, brighter-looking complexion.

0.02% Retinol for a Gentle Introduction to Age-Defying Care

At 0.02% or 660 IU, the retinol concentration is deliberately restrained. COS DE BAHA positions RT Serum as a gentle retinol option suitable for beginners and sensitive skin, designed to improve the appearance of wrinkles and uneven texture while supporting visible renewal. This makes it especially appealing to those beginning a Korean anti-aging skincare ritual or seeking retinol benefits without immediately reaching for a higher-strength formula.

2% Bakuchiol Complements the Retinol Ritual

Bakuchiol appears at a substantial 2% concentration, creating the second pillar of the formula's age-focused care. COS DE BAHA highlights it for improving the appearance of wrinkles and supporting elasticity, allowing it to complement the low-level retinol beautifully. Together, retinol and bakuchiol give RT Serum its distinctive identity: a modern pairing designed for smoother, firmer and more refined-looking skin while maintaining an elegant approach to gradual skincare renewal.

3% Tranexamic Acid & 2% Arbutin Target Uneven Tone

The ritual extends beyond visible aging into pigmentation care. A verified 3% concentration of tranexamic acid is paired with 2% beta-arbutin to address the appearance of hyperpigmentation, dark spots and uneven tone. Their inclusion makes RT Serum particularly compelling for complexions experiencing both visible signs of aging and stubborn discoloration, uniting Korean dark spot care and retinol skincare within a single, streamlined evening treatment.

Cica, Ceramide & Hyaluronic Acid Surround Actives with Care

Behind the concentrated actives lies an unusually generous supporting composition. Aloe vera, sodium hyaluronate and panthenol provide hydration and conditioning, while Ceramide NP and squalane support a comfortable, supple skin feel. Madecassoside, asiaticoside, madecassic acid and asiatic acid—the recognizable components associated with Centella Asiatica—bring Cica-inspired soothing care to the formula. Allantoin, vitamin E and adenosine further round out this considered approach to visibly renewed skin.

A Nighttime Ritual Designed to Be Introduced Slowly

Apply RT Serum in the evening after cleansing and toning and before moisturizer. For those new to retinol, beginning once or twice weekly allows the complexion time to adjust before frequency is gradually increased according to tolerance. Consistent broad-spectrum sunscreen during the day is essential when retinol forms part of the routine. This measured rhythm transforms potent skincare into something more sensual: an evening ritual of patience, care and beautifully considered renewal.

Where Korean Retinol Innovation Meets Luminous Tone Correction

Made in South Korea, COS DE BAHA RT Retinol Tranexamic Serum turns the pursuit of smoother, more even-looking skin into an indulgent nighttime ritual. Retinol and bakuchiol address the appearance of time while tranexamic acid and arbutin pursue luminous uniformity; Cica components, ceramide and hyaluronic acid surround them with comforting care. Night after night, the complexion is invited toward greater smoothness, clarity and radiance—the quiet confidence of skin that looks exquisitely renewed.

FAQ

How much retinol is in COS DE BAHA RT Retinol Tranexamic Serum?

The current manufacturer specification confirms 0.02% retinol, equivalent to 660 IU. COS DE BAHA positions this lower concentration as appropriate for retinol beginners and sensitive skin, although individual tolerance varies and gradual introduction remains important.

What are the main active concentrations in COS DE BAHA RT Serum?

RT Serum contains 2% bakuchiol, 0.02% retinol, 3% tranexamic acid and 2% beta-arbutin. This combination allows the serum to target both visible signs of aging and uneven-looking pigmentation within one formula.

Is COS DE BAHA RT Serum good for dark spots and hyperpigmentation?

The formula is specifically positioned for pigmentation and uneven tone, with 3% tranexamic acid and 2% arbutin complementing its retinol and bakuchiol complex. It is therefore particularly relevant to routines focused on dark spots, post-blemish discoloration and uneven-looking tone.

How often should beginners use COS DE BAHA RT Retinol Serum?

Begin conservatively with once or twice weekly nighttime application and monitor skin tolerance. Frequency can be increased gradually as the complexion adjusts rather than immediately applying a retinol treatment every night.

Does COS DE BAHA RT Serum contain ingredients that support hydration and the skin barrier?

Yes. The formula includes sodium hyaluronate, panthenol, squalane and Ceramide NP alongside aloe vera, madecassoside, allantoin and additional Centella-derived components, creating moisturizing and conditioning support around its targeted actives.

Let Every Evening Reveal a More Refined Radiance

Make COS DE BAHA RT Retinol Tranexamic Serum the transformative touch within your nighttime ritual. Four targeted actives meet Cica, ceramide and hyaluronic hydration in this South Korean formula, inviting fine lines, uneven texture and stubborn-looking discoloration to become less commanding as smoother, clearer and more luminous-looking skin takes centre stage.