It is estimated that from the age of 30, collagen decreases by 1% per year. So this skin that changes, we can hardly do anything about it, that's how it is, it's physiological. However, as we know, entering this decade must be accompanied by new reflexes to maintain your skin and maintain a young girl's complexion for as long as possible. Here are 12 tips to keep your skin more supple, and less vulnerable to the ravages of time, so that at 50 the money saved for a facelift is finally invested in a beautiful journey.