It's a similar story for hyaluronic-acid filler products. Beauty tech devices — most manufactured in China — are now subject to super-high import duties, which have already affected prices.

In this edition of The Gift, we dish on our favorite (highly giftable) beauty products. Plus: the best lotions, retinols, and what to get for a 90th birthday.

Not much has changed over the past 30 years in beauty, with ingredients such as cortisone, salicylic acid, and coal tar still being used to treat common conditions such as eczema, acne, and dandruff.