Morning routine
Not recommended in the morning. Always wear an SPF30+ during the day when using a Retinol routine.
§I · FormulationFrom BIOSAR's Serenvit range
Retinol Serum
Serenvit Retinol Serum is BIOSAR's evening renewal serum for the appearance of fine lines, uneven texture, and dullness. Encapsulated Retinol releases gradually overnight to support visible cell turnover; Squalane and Panthenol soothe the surface so the routine remains tolerable; Vitamin E supports antioxidant defense. Use it as the start of a Retinol routine — twice a week the first month, three times a week the second, then every night as tolerated. Always pair with a daily SPF50+ in the morning. Not recommended during pregnancy or breastfeeding. Pairs with the Serenvit Hyaluronic Acid Serum.
- Retinol
- PanthenolPanthenol (Provitamin B5)
- Squalane
- Aloe VeraAloe Barbadensis Leaf Juice
Ten ranges
One philosophy
SFDA
Registered
GMP · ISO 22716
Standard
Why it works
The gold-standard renewer, made kind to skin. BIOSAR's Vitalize Retinol resurfaces and refines fine lines and uneven texture while Squalane, Macadamia and Jojoba oils, Panthenol, Vitamin E and Pentavitin cushion and hydrate on a soothing Aloe Vera base. Skin looks smoother, firmer and visibly renewed. (Retinol formula — not for use during pregnancy or breastfeeding.)
- Retinol
- Panthenol
- Squalane
- Aloe Vera
- Vitamin E
- Pentavitin
Proven Benefits
What this product does for your skin
Reduced fine lines
Encapsulated Retinol reduces the look of fine lines overnight.
Renewed texture
Gradual release supports visible cell turnover and smoother skin.
Eased tolerance
Squalane and Panthenol soothe the surface so renewal stays tolerable.
How the actives work together
The renewal of retinol, delivered so gently your skin barely notices
Retinol renews the look of texture, fine lines and tone as skin turns over toward a smoother, more even finish. Because it is a demanding active, it is comprehensively buffered in the same drop: Squalane, Macadamia and Jojoba oils soften delivery, Panthenol calms, and Vitamin E steadies the surface. Pentavitin locks in moisture and the Aloe Vera base keeps it all tolerable, so serious renewal stays a comfortable nightly step.
Ingredient Research
Active ingredients backed by published studies
- −44%
Crow's-feet fine lines visibly softened over a year
In a year-long double-blind, vehicle-controlled trial, 0.1% stabilized retinol reduced crow's-feet fine lines by 44% by week 52. Benefits kept building at every checkpoint, backed by increased type I procollagen in the skin.
J Drugs Dermatol 2015 (Randhawa) — View research → - 96%
96% stayed calm and flare-free through the trial
In a 3-month trial, 96% of young participants using a panthenol-containing emollient stayed flare-free, versus 77% on reference care. Provitamin B5 keeps sensitive, barrier-stressed skin soothed and steady day after day.
J Dermatolog Treat 2017 — View research →
Transparency
What's inside — and what's not
Application Guide
How to use
Evening routine
Apply a few drops to clean dry skin before moisturizer. Start with twice a week and build up gradually.
Realistic Expectations
What to expect
I
From day one
Felt on first use
Skin drinks in the serum and feels comfortable, hydrated and cared for.
II
Week 1–2
First visible results
The targeted concern — hydration, tone, texture or firmness — starts to visibly improve.
III
Week 4–6
Full targeted result
Complete Care
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Pairs beautifully with
Frequently asked questions
Why do I need to use the Retinol Serum only at night?
Retinol is photosensitizing — it breaks down under UV and can increase sun sensitivity. Night application paired with daily SPF50+ in the morning is the standard protocol.
Last reviewed by BIOSAR Scientific Team, PharmD, Cosmetic Chemistry, Pharmacy practice on .
Claims & methodology
- Reduces the appearance of fine lines and uneven texture — Consumer perception study. Study on file at BIOSAR Laboratories.
Published references
- J Drugs Dermatol 2015 (Randhawa). pubmed.ncbi.nlm.nih.gov/25738849/
- J Dermatolog Treat 2017. www.tandfonline.com/doi/full/10.1080/09546634.2017.1328938
- Dermatology Research and Practice 2024. pmc.ncbi.nlm.nih.gov/articles/PMC11685320/
