Collagen Booster Cream Rich is an exceptionally rich cream that was specially developed to counteract loss of tissue firmness, reduce the depth of lines and strengthen the skin?s protective barrier. Collagen Booster Cream Rich is an exceptionally rich cream that was specially developed to counteract loss of tissue firmness, reduce the depth of lines and strengthen the skin?s protective barrier. For mature, dry skin: Collagen Booster Cream Rich is an exceptionally rich cream that counteracts loss of tissue firmness, reduces the depth of lines and helps to strengthen the skin?s protective barrier. Lends the complexion a smoother, fresher and more youthful appearance.