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.
CLINICALLY PROVEN RESULTS
RETINOL-LIKE BI-SERUM
A powerful dual-phase formula designed to visibly smooth 100% of wrinkle types (smile lines, forehead lines, crow’s feet), tighten pores from the very first use, and leave skin texture 2X finer, without irritation, even for sensitive skin.
After using the bi-serum, 9 out of 10 people have had their pores refined, 8 out of 10 people have younger-looking skin and have their deep wrinkles appear filled and 92% of people have their skin transformed being softer and smoother.*
At the heart of the formula, two retinol-like active ingredients of 100% natural origin work synergistically within the exclusive [RE]NEW technology to reactivate skin renewal at both the dermal and epidermal level. An encapsulated biomimetic microalgae derived from biotechnology delivers a structural analogue of retinoic acid, stimulates cellular activity and targets fibroblasts, outperforming retinol, while an active fraction from mastic tree, which is plant-derived, protects and enhances retinoid mechanisms. It inhibits retinoic acid degradation and increases gene expression involved in the retinoid cascade.
Formulated with 99.8% ingredients of natural origin, this lightweight serum absorbs quickly and delivers visible results with lasting comfort.
30ml
*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.
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.
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.
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
YOUR 4 STEP DAILY ROUTINE
HOW TO USE
CLEANSE
Begin with a gentle cleanser to remove makeup, impurities, and excess oil while preparing the skin to receive the benefits of the products that follow. Clean, refreshed skin ensures optimal absorption of active ingredients.
TONE
Follow with a toner to rebalance and hydrate the skin after cleansing. This essential step helps to refresh the complexion and create the perfect foundation for your serum and moisturiser.
TREAT
Retinol-Like Bi-Serum
Powered by a plant-based retinol alternative, this innovative bi-phase serum helps smooth the appearance of fine lines and wrinkles, improve skin texture, and restore radiance without the irritation often associated with traditional retinol. Skin appears firmer, smoother, and more youthful-looking with continued use.
MOISTURISE
Time Resist Jour & Nuit
Complete your routine with Time Resist Jour or Time Resist Nuit to deeply nourish and support the skin's natural regeneration process. These age-defying moisturisers help improve firmness, comfort, and hydration while complementing the smoothing and rejuvenating benefits of the Retinol-Like Bi-Serum.
Pro Tip: For best results, use consistently as part of your morning and evening skincare routine and apply SPF daily to protect your skin and maintain a youthful-looking complexion.