Garnier Fructis Style Full Control Anti-Humidity Hairspray

Sloppy to Sleek
The synthetic resins in Garnier Fructis Style Full Control Anti-Humidity Hairspray ($4.50; drugstores) repel water to hold your style. The spray also contains waxes (from mango seeds and lemon extract) to add shine.

Aveda Light Elements Texturizing Creme

Frizzy to Defined
Aveda Light Elements Texturizing Creme ($24; Aveda.com) is infused with jojoba and soy to smooth frizz. Organic grapefruit, ginger, and mandarin oils give hair a subtle citrus scent.
Matrix Design Pulse Switch-Flicks Wax-Gel

Shapeless to Finished
On a short cut, apply Matrix Design Pulse Switch-Flicks Wax-Gel ($16; Matrix.com for salons) to wet hair for a sculpted style. On long layers, scrunch it through dry hair to add texture and volume.

Fekkai Advanced Brilliant Glossing Sheer Shine Mist

Dull to Shiny
Fekkai Advanced Brilliant Glossing Sheer Shine Mist ($25; Fekkai.com) contains microscopic capsules of olive oil to give hair a sheer gloss that doesn't look greasy or wet.

Stealth Flat Iron by Keratin Complex

Curly to Straight

Straight to Curly
The Stealth Flat Iron by Keratin Complex ($139; KeratinComplex.com) does double duty. For a sleek finish, straighten hair between the titanium plates; for soft curls, wrap hair around the heated outer edges.
Rusk Priming Creme

Unruly to Manageable
If your hair is usually hard to style, try Rusk Priming Crème ($13; StyleSource.com). Olive oil and pro-vitamin B5 smooth the cuticle to create a controllable texture, so you can blow-dry, straighten, or curl quickly and easily.

Redkin Body Full Instant Bodifier

Flat to Voluminous
The wheat extract in the liquid-to-foam Redken Body Full Instant Bodifier ($16; Redken.com for salons) coats each strand of hair to create texture and boost volume; the cotton extract leaves hair soft and moisturized.

Reinvent your hairstyle without making a single snip
From the February 2010 issue of O, The Oprah Magazine