Meet Yon-Ka’s Retinol-Like Bi-Serum, an advanced dual-phase formula designed to visibly smooth 100% of wrinkle types, tighten pores from the very first use, and leave skin texture 2X finer, without irritation, even for sensitive skin.
RETINOL-LIKE BI-SERUM
Reinventing Retinol, Without Compromise
Meet Yon-Ka’s Retinol-Like Bi-Serum, an advanced dual-phase formula designed to visibly smooth 100% of wrinkle types, tighten pores from the very first use, and leave skin texture 2X finer, without irritation, even for sensitive skin.
Visible skin renewal, Exceptional comfort
At the heart of the formula, two retinol-like active ingredients are clinically proven to outperform retinol within the exclusive [RE]NEW technology. They target key mechanisms of the retinoid pathway to reactivate skin renewal and visibly improve skin microrelief.
0%
Retinol-like Active Duo Natural Origin
0%
Natural Origin
The Science Behind Visible Renewal
At the heart of the formula, Yon-Ka’s exclusive [RE]NEW Technology combines two advanced retinol-like actives in a breakthrough dual synergy. Acting from the surface to the core, it delivers high performance with skin-respectful tolerance for visibly renewed skin.
A TARGETED RESPONSE, INSPIRED BY SCIENCE
A global action from the skin surface to the core of cutaneous mechanisms for optimized renewal.
BI-PHASE POWER
A two-phase system designed to amplify results through complementary, high-performance action.
RETINOL-LIKE DUAL SYNERGY
Two advanced retinol-like actives work in complementary synergy to reactivate skin renewal and visibly improve skin microrelief.
The Science Behind Visible Renewal
At the heart of the formula, Yon-Ka’s exclusive [RE]NEW Technology combines two advanced retinol-like actives in a breakthrough dual synergy. Acting from the surface to the core, it delivers high performance with skin-respectful tolerance for visibly renewed skin.
A TARGETED RESPONSE, INSPIRED BY SCIENCE
A global action from the skin surface to the core of cutaneous mechanisms for optimized renewal.
BI-PHASE POWER
A two-phase system designed to amplify results through complementary, high-performance action.
RETINOL-LIKE DUAL SYNERGY
Two advanced retinol-like actives work in complementary synergy to reactivate skin renewal and visibly improve skin microrelief.
Skin, Visibly Renewed
Clinical testing shows measurable improvements in skin texture, smoothness, and overall skin quality. After consistent use, skin appears visibly renewed, softer, more refined, and more luminous.
*Individual results may vary.
Skin, Visibly Renewed
Clinical testing shows measurable improvements in skin texture, smoothness, and overall skin quality. After consistent use, skin appears visibly renewed, softer, more refined, and more luminous.
*Individual results may vary.
Clinically Observed, Visibly Felt
From the first application, skin appears visibly renewed.
92% report smoother, softer skin

Skin texture appears 2x finer

9/10 observe refined pores

Effective across 100% of wrinkle types tested

8/10 report younger-looking skin

8/10 report deep wrinkles appear filled
Clinically Observed, Visibly Felt
From the first application, skin appears visibly renewed.
92% report smoother, softer skin

Skin texture appears 2x finer

9/10 observe refined pores

Effective across 100% of wrinkle types tested

8/10 report younger-looking skin

8/10 report deep wrinkles appear filled
AN EXPERT PRODUCT, INSTANT COMFORT
Designed to deliver visible renewal with exceptional comfort, this dual-phase serum melts effortlessly into skin, transforming into a silky, fast-absorbing emulsion with a non-greasy finish — leaving skin soft, smooth, and refreshed.
100% find their skin instantly hydrated and comfortable, with a fast-absorbing texture and non-greasy finish.
Dermatologically-tested and suitable for all skin types, including sensitive skin.
Visible renewal. Lasting comfort.
AN EXPERT PRODUCT, INSTANT COMFORT
Designed to deliver visible renewal with exceptional comfort, this dual-phase serum melts effortlessly into skin, transforming into a silky, fast-absorbing emulsion with a non-greasy finish — leaving skin soft, smooth, and refreshed.
100% find their skin instantly hydrated and comfortable, with a fast-absorbing texture and non-greasy finish.
Dermatologically-tested and suitable for all skin types, including sensitive skin.
Visible renewal. Lasting comfort.
YOUR DAILY RITUAL
Activate. USE. Renew.
Shake well to fuse both phases. Dispense 6 to 8 drops into the palms and inhale the aromatic notes to awaken the senses.
Apply to face and neck using gentle pressing motions.
Use morning and/or evening on clean skin — alone or beneath your cream.
1.Tested under dermatological control – Twice-daily application on 24 women - 46 to 70 years old - All skin types including sensitive skin: Self-scoring under dermatological control – % variation at Day 56 versus Day 0. 92% satisfaction at Day 56. Significant self-assessment results on 100% of the wrinkle types evaluated at Day 56.
*Tested under dermatological control - Twice-daily application on 24 women - 46 to 70 years old - all skin types including sensitive skin – Wrinkles: Significant self-assessment results on 100% of the wrinkle types evaluated at Day 56. Skin texture: self-scoring under dermatological control – % variation at Day 56 versus Day 0 - Pores: Self-assessment result - 63% satisfaction - Immediate result. Comfort : 100% satisfaction - Immediate result.