Joico developed it for frizz-prone, dry or curly hair that you blow-dry or flat-iron smooth and want to keep sleek for several days, even in humid weather.

It is made for heat styling: the formula is activated by the heat and tension of a blow-dry, so it is not meant for air-dried styles.

Smooth blowouts on frizz-prone hair rarely survive a humid day. Dream Blowout Glass is designed to make the style last: heat activates a barrier around the cuticle so the hair stays sleek and shiny for up to three days, while also protecting it from hot tools. Joico's own comparison is that Dream Blowout gives a faster, bouncier blowout, while Glass is for a sleeker, shinier finish.

• Spray liberally onto clean, damp hair and comb through.
• Blow-dry with tension to activate the formula.
• A flat iron can be used afterwards for extra smoothness (safe up to 400°F / 204°C).
• Do not apply other styling products until hair is fully dry and the blowout is complete; Humidity Blocker+ can be used to finish.

Pros

• Up to 72 hours of frizz control and humidity resistance
• Heat protection up to 400°F (204°C) built in
• Leaves a glossy, sleek finish rather than a stiff one

Cons

• Needs a blow-dry with tension to work
• Joico advises against layering other styling products until the blowout is finished, and against combining it with the original Dream Blowout