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Main Benefits
Strengthens the Skin Barrier
Supports a more resilient barrier to help defend against irritation, environmental stressors, and sensitivity.
Deep Soothing Relief
Calms red, stressed, or post-procedure skin while promoting a balanced, comfortable feel.
Hydrates & Restores Balance
Replenishes moisture and helps rebalance the hydrolipid layer to reduce dryness and flakiness.
Improves Skin Clarity & Evenness
Brightens and refines the complexion, helping skin look smoother, more even, and revitalized.
Indications
This serum is formulated for anyone with sensitive, reactive, or compromised skin needing steady soothing care. It helps reinforce the skin barrier, restores moisture balance, and supports a healthier, calmer appearance without overwhelming the skin.
Ideal for sensitive or easily irritated skin that needs gentle, comforting hydration and barrier support
Recommended for dry, tight, or moisture-depleted skin experiencing flakiness or discomfort.
Suitable for post-treatment recovery, helping calm and replenish the skin after lasers, peels, or irritation.
Great for redness-prone or troubled complexions needing clarity, balance, and revitalization.
Active Ingredients
Hydrolyzed Pea Protein
Helps energize skin regeneration, strengthen the barrier, and improve overall resilience.
Licorice Extract
Provides soothing and brightening benefits, helping reduce redness and promote a more even complexion.
Portulaca Extract
Delivers calming and moisturizing effects, supporting relief for irritated or dehydrated skin.
Green Tea Callus Culture Extract
Offers antioxidant and skin-strengthening support, helping defend against environmental stressors.
Mechanism of Action
Treatment Areas
Face
For soothing, hydrating, and restoring balance to sensitive or reactive skin.Neck & Décolleté
Ideal for strengthening thin, easily irritated skin and improving moisture levels.Post-procedure zones
Safe for areas treated with lasers, peels, or resurfacing procedures that require calming and barrier support.
Preparations Before Use
Cleanse the skin gently to remove impurities, sunscreen, or makeup.
Pat the skin dry with a soft towel, leaving it slightly damp for better absorption.
Avoid using strong exfoliants or active acids immediately before application, especially on sensitized or post-procedure skin.
Ensure hands are clean before dispensing the serum to maintain product hygiene.
How to Use
Apply a moderate amount of serum to the face, neck, and any irritated areas.
Gently spread and press into the skin until fully absorbed.
Use twice daily, morning and night, for best results.
Follow with a moisturizer or additional products from the STEM CELL line to enhance soothing and repair.
No rinsing required.
What's Inside
1 bottle of RONAS Stem Cell Z Serum
1.69oz / 50ml of concentrated soothing and barrier-strengthening formula
FAQ
It soothes sensitive skin, strengthens the barrier, and helps protect against irritation while restoring moisture balance.
Yes. It’s designed to calm and hydrate skin after professional treatments and help reduce redness or discomfort.
Absolutely. The formula is gentle, calming, and supports clearer, more balanced skin.
No. It has a lightweight, fast-absorbing texture that hydrates without heaviness or congestion.
Yes. It works well under moisturizers, creams, and other items from the STEM CELL line.
Use it twice daily, morning and night, for consistent soothing and strengthening benefits.
Yes. It’s formulated specifically to calm sensitivity and reinforce a weakened or reactive barrier.
How to Store
Keep the serum in a cool, dry place between 1–30°C.
Avoid exposing the bottle to direct sunlight.
Do not heat or freeze the product.
Keep the cap tightly closed to maintain freshness and stability.
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One of my favorites!!!!! I use this in the morning with another Rona’s lotion and the feel and texture of my skin just amazes me and I don’t want to live without it. Just stocked up!
Product Benefits Incredible!
Age 43
It makes my face and hands feel so soft!
Great product
Love ❤️ Love ❤️