A Glycolic Acid or Salicylic Acid Toner helps keep those little bumps and black/whiteheads at bay, because they really clean your skin further.

Consider this your Dewey decimal system:1 percent human-growth factor and5 percent hyaluronic acid deliver skin that's more radiant and firmer in just 30 days. A huge win,” says Boston dermatologist Ranella Hirsch of this non-fussy, hardworking formula, which boasts hyaluronic acid (the same skin plumper used in Restylane injections) and barrier-building ceramides and niacinamide.

But her skin felt like scar tissue from all the peeling.” In terms of effectiveness, one of Ms. Vargas's near-universal recommendations is also LED light therapy.