I have used this product. It is very effective and works perfectly. After few uses I have noticed that my skin became more glowing, shiny, as my pigmentations around my freckles start to fade and after The first bottle they disappeared completely.
It may give you a tingling feeling like slightly burn, but this feeling disappears after one week.
I let it soak into my skin using a quartz roller, and I wait around 15mns before applying my cream. It is better to give the vit C time to ********* into your skin before applying any other products or serum.
You have to be mindful not to use it after using any type of chemical exfoliants that contain glycolic acids or AHAs and BHAs because chemical exfoliants cancel the action of vit C.
The 15% Vit C is a great amount that you barely find it in other products. Obagi, Dermadoctor (kakadu C), skinceuticals have vit C serums that contains 20% but they’re way more expensive than Vichy. So as price tag it is very reasonable.
Pay attention to the shelf life it is only 6Months. Vitamin C can never ever be used after the expiration of shelf life written on the box.
So always label the bottle or save a note to remind you when you first opened the product and discard it after 6M.