Morning routine
Not recommended in the morning.


Serenvit Eyebrow & Eyelash Serum is BIOSAR's overnight conditioning serum for thinning brows and short, brittle lashes. Biotin supports the look of fuller hair; Keratin reinforces the strand structure; Panthenol conditions the lash line without irritation. Use it nightly before bed on clean, makeup-free brows and lash lines. The fine-tip applicator suits both brow shape and the upper lash line. Suitable for adults with thinning brows after over-plucking, ageing, or post-medical hair loss. Tolerance-tested under dermatological supervision near the waterline.
Sparse brows and thinning lashes get a serious wake-up call. A Peptide Solution and Biotin condition and fortify every hair while Panthenol nourishes the follicle line, all on a comforting Aloe Vera base. Brows look denser, lashes look fuller and healthier — the confident, defined frame your eyes deserve, with visible improvement in as little as a few weeks.
Proven Benefits
Biotin supports the look of fuller brows and lashes.
Panthenol conditions the lash line without irritation.
Keratin reinforces the structure of short, brittle lashes.
How the actives work together
A conditioning Peptide Solution works alongside Biotin to nourish the look of each brow and lash from the root outward. Panthenol and an Aloe Vera base keep the delicate skin at the lash line calm and comfortable through nightly use. Together they turn a single drop into one complete grooming step, so sparse edges gradually read as denser and more defined.
Ingredient Research
In a double-blind, vehicle-controlled facial study, a moisturizer with palmitoyl pentapeptide (Matrixyl) halved the appearance of fine lines and wrinkles versus vehicle by expert grading. Skin looked smoother, more refined.
J Am Acad Dermatol 2005 — View research →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 →Behind the Formula
Supports the appearance of fuller-looking brows and lashes with topical peptide solution.
Contributes to the appearance of lash and brow vitality.
Transparency
Application Guide
Not recommended in the morning.
Apply a thin layer along brows and the upper lash line on clean, makeup-free skin.
Realistic Expectations
Skin drinks in the serum and feels comfortable, hydrated and cared for.
The targeted concern — hydration, tone, texture or firmness — starts to visibly improve.
Complete Care
Complete the routine
Last reviewed by BIOSAR Scientific Team, PharmD, Cosmetic Chemistry, Pharmacy practice on .
Fine-tip applicator targets brows and lash line nightly.
In this topical forearm trial, an aloe-extract cream significantly raised stratum-corneum water content versus its vehicle, measured by Corneometer. One to two weeks of daily use hydrated skin without disrupting the barrier.
Results from published peer-reviewed studies on individual active ingredients. Individual product results may vary.
Palmitoyl Tripeptide-1
Short chains of amino acids that act as messengers in the skin. In anti-aging formulas they support the signals behind firmness and elasticity, softening the look of fine lines for smoother, more resilient skin.
Panthenol (Provitamin B5)
Provitamin B5 that supports the skin's repair and hydration signals. Widely used in sensitive, post-procedure, and daily-care formulas.
Biotin
Vitamin B7, a building block the hair fiber relies on. Applied in leave-on hair and scalp formulas, it supports stronger, more resilient-looking strands and a healthier, more vital scalp.
Aloe Barbadensis Leaf Juice
Botanical humectant used as a comforting base across serums, baby care, and cleansers. High concentrations deliver noticeable cooling and hydration.
The serum's focused benefit reaches its peak with consistent daily use.
Individual results vary based on skin condition and routine consistency.