Description
GrenzCine Serum is Vivier’s growth factor serum, combining 10% L-ascorbic acid USP with the brand’s Polyamine-DAB complex, for deeper lines and loss of firmness. Vivier lists it for all skin types and especially mature skin, applied as two to three drops on clean dry skin once or twice daily.
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What GrenzCine Serum does
Vivier lists three benefits: it helps visibly reduce the appearance of deeper fine lines and wrinkles, boosts skin firmness and volume with improved elasticity, and enhances skin smoothness and radiance. The brand describes the intent as restoring volume, density, firmness and elasticity.
Key ingredients
Vivier lists 10% vitamin C as L-ascorbic acid USP together with Polyamine-DAB growth factors. It is the only serum in the range that combines the brand’s growth factor technology with its vitamin C.
Who it is for
All skin types, especially mature skin, per Vivier. It is the serum equivalent of GrenzCine Face, and people often use one or the other rather than both.
How to use it
Two to three drops in the palm, applied as a thin layer to face, neck, chest and the backs of the hands. Vivier says once or twice daily on clean dry skin.
How it fits with your treatments at Bar Beauty
Firmness and density are what our collagen-stimulating treatments target, and this is the Vivier product most often discussed alongside them. We will be honest about what a serum can and cannot do compared with an in-clinic treatment.
Buying Vivier in Toronto
Bar Beauty Medical is an authorized Vivier retailer, so GrenzCine bought here comes through Vivier Pharma’s professional channel. Read more on our Vivier page, see how to verify authentic skincare, or browse all of our medical-grade skincare.
Bar Beauty Medical, 46 Fort York Blvd, CityPlace Toronto, open 7 days. Authorized retailer for the brands we stock. Product guidance here is general; we confirm what suits your skin and the right timing around any treatment at your free consultation.
Why we stock it: The serum patients ask about by name after researching Vivier. Often paired with microneedling with PDRN at our Toronto clinic.
Frequently asked questions
What is in GrenzCine Serum?
Vivier lists 10% vitamin C as L-ascorbic acid USP together with Polyamine-DAB growth factors.
Should I use the serum or the face cream?
They cover similar ground. The serum is a lighter texture applied to face, neck, chest and hands; the cream is applied to the face avoiding the eye area. We will help you pick one rather than sell you both.
Which skin types does Vivier recommend it for?
All skin types, and mature skin in particular.
How much do I use?
Two to three drops in the palm, applied as a thin layer, once or twice daily on clean dry skin.
Is GrenzCine sold in Toronto?
Yes. We are an authorized Vivier retailer at 46 Fort York Blvd in CityPlace and carry the GrenzCine range.





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