To keep a firm and smooth appearance for a long time, all you need is a little daily exercise by applying moisturizing milk, possibly tensor and anti-aging.
On the flat of the chest: with the flat of the hands, smooth horizontally in the opposite direction to the vertical wrinkles. Then perform quick circular pressures with your fingertips after adding second milk or protective serum dose.

At the level of the breasts: lighten the vertical tension by passing under each breast with the flat of the hand and going up on the sides while gently smoothing.