BEST BETS FOR...

Fully-recyclable packaging produced in a carbon-neutral facility: Garnier Fructis Nourishing Treat 1-Minute Hair Mask ($5.50). Biodegradable product: The Body Shop Drops of Youth Youth Concentrate Sheet Mask ($8). Plastic-free packaging:

Unwrapped Life The Hydrator Shampoo & Conditioner Bars ($35).

For details, see Shopping Guide.