I can unequivocally say that I have NEVER stayed with any particular skin care line, until I met Ava. That's because I never saw results, no matter the reputation of the products or their expense. But this sixty-something lady sees VERY obvious results in her skin, in terms of clarity, fineness and elasticity. This elixir, the boosters and the Gua Sha tool, used in combination, are an EXCELLENT investment for the beauty-minded!