ProtoClinical k-beauty Cos De BAHA L2 Bakuchiol 2% + Retinol 0.5% Serum 30ml single serum bottle centered upright on a plain white background
ProtoClinical k-beauty Cos De BAHA L2 Bakuchiol 2% + Retinol 0.5% Serum 30ml single serum bottle centered upright on a plain white background
ProtoClinical k-beauty Cos De BAHA L2 Bakuchiol 2% + Retinol 0.5% Serum 30ml single dark serum bottle with black cap and pale beige side accents on a white background
Cos De BAHA

Cos De BAHA L2 Bakuchiol 2% + Retinol 0.5% Serum 30ml

$17.03
Evens out skin tone for a clearer, more uniform complexion Targets visible signs of aging for a more youthful appearance Restores healthy radiance and a lit-from-within glow Nourishes depleted skin with essential nutrients Fades the look of dark spots and post-inflammatory marks
Formulated for lackluster, troubled or aging skin, this nourishing serum infused with powerful anti-aging ingredients like retinol and bakuchiol effectively restores radiance to skin while boosting its long-term resilience. Niacinamide and lavender extract work in tandem to fade hyperpigmentation and improve skin tone. Formulated without potentially irritating ingredients...
For sensitive skin dealing with sensitivity and redness: Cos De BAHA's serum with Niacinamide works from within to deliver evens out skin tone for a clearer, more uniform complexion, not just temporary comfort.
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Niacinamide Retinol 0.5%
Cos De BAHA L2 Bakuchiol 2% + Retinol 0.5% Serum 30ml
Cos De BAHA L2 Bakuchiol 2% + Retinol 0.5% Serum 30ml Default Title
$17.03
Clinically proven actives Dermatologist tested 100% authentic Korean Cruelty-free
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$17.03

Niacinamide and Retinol 0.5%

Niacinamide works at the junction between melanocytes and keratinocytes, intercepting melanin transfer before pigment reaches the visible surface. It simultaneously boosts ceramide synthesis to strengthen the lipid barrier, which is why consistent use addresses both discoloration and dehydration. In this serum, Niacinamide targets sensitivity and redness, delivering evens out skin tone for a clearer, more uniform complexion with consistent use.

Niacinamide
intercepts melanin transfer to fade spots and refine pore texture from within
Retinol 0.5%
accelerates cell turnover and stimulates collagen synthesis for smoother, firmer skin
The texture

Lightweight, absorbing serum

Formulated for lackluster, troubled or aging skin, this nourishing serum infused with powerful anti-aging ingredients like retinol and bakuchiol effectively restores radiance to skin while boosting its long-term resilience. Niacinamide and lavender extract work in tandem to fade hyperpigmentation and improve skin tone. Formulated without potentially irritating ingredients such as parabens, sulfates and mineral oil, the serum is dermatologically tested to be suitable for sensitive skin. Comes with natural herbal aroma.

Sensitive Skin Sensitivity and Redness Fine Lines and Wrinkles Dark Spots
Hover the swatch: it ripples like water

How to use

1

Step 1: After cleansing and toning, press 2 to 3 drops onto fingertips.

2

Step 2: Gently pat and press across forehead, cheeks, nose, and chin.

3

Step 3: Allow 30 seconds for full absorption before the next step.

4

Step 4: Follow with moisturizer. Use sunscreen in the morning.

Full transparency

Ingredients

Niacinamide intercepts melanin transfer to fade spots and refine pore texture from within, while Retinol accelerates cell turnover and stimulates collagen synthesis for smoother, firmer skin, creating a formula that addresses multiple needs at once.

Niacinamide works at the junction between melanocytes and keratinocytes, intercepting melanin transfer before pigment reaches the visible surface. It simultaneously boosts ceramide synthesis to strengthen the lipid barrier, which is why consistent use addresses both discoloration and dehydration. At concentrations above 4%, it also regulates sebum output without stripping, making it one of the few actives that benefits every skin type.

The detail

Specs & details

FormatLightweight serum
SizeDefault Title
Skin typesSensitive Skin
Country of originSouth Korea
Before you add to cart

Questions & answers

After cleansing and toning, before moisturizer. Serums deliver actives most effectively on freshly prepped skin.
Yes. Apply from thinnest to thickest consistency and allow each layer to absorb before the next.
Most users notice initial improvement within 2 to 4 weeks. For full benefits like evens out skin tone for a clearer, more uniform complexion, allow 6 to 8 weeks of consistent use.
Your skin begins adjusting. You may notice improved hydration and comfort before more visible changes like texture refinement become apparent.
Yes, this formula is developed to be compatible with sensitive skin dealing with sensitivity and redness. If you have very reactive skin, patch test on the inner arm before full application.
The formula is designed to be well-tolerated. For pregnancy-specific concerns, consult your healthcare provider. For sensitive skin, patch test before full application.
Niacinamide intercepts melanin transfer to fade spots and refine pore texture from within. Consistent daily use is key to seeing the full benefits.
Check the INCI list for the most accurate information on fragrance components. The formula is developed for minimal irritation potential.
Store in a cool, dry place away from direct sunlight. Use within 12 months of opening for optimal freshness and efficacy.
Serums have a higher concentration of targeted actives than essences and a lighter consistency than most ampoules. They deliver the most potent treatment in your routine.
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About the brand

OriginSeoul, KR
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