Anyone who needs a firm, long-lasting hold rather than a light, flexible one — for example updos, roller sets, pin curls, or blowouts that need to hold shape through a full day. The "PC 2000" naming and aerosol can format are typical of Roux's professional styling range sold through beauty supply and salon-distribution channels, so it's used by stylists as often as by consumers styling at home; no professional training is required to apply it.

Where a basic styling mousse is really just a hold-and-set product, this one pairs a genuine UV filter with dual protein conditioning (silk plus collagen), so it's doing more than holding a style — it's also intended to add some sun protection and conditioning benefit while it holds. The gel-mousse texture is built specifically for a super/firm hold meant to last through a full styling day without flaking.

• Shake the can well before use
• Dispense a quarter-size amount of mousse into your palm or directly into hair
• Distribute evenly through damp or dry hair, from roots to ends
• Sculpt, set with rollers or pins, or blow-dry into the finished style
• Store away from heat sources and open flame due to the aerosol propellant

Pros:

• Contains an actual UV-filter ingredient (ethylhexyl methoxycinnamate), so the "sunscreen" claim reflects a real active rather than just marketing language
• Super/firm hold designed to resist flaking through a full day of wear
• Includes both hydrolyzed silk and hydrolyzed collagen for conditioning, more than most basic hold-only mousses include
• Works on either damp or dry hair, giving flexibility depending on the style being built

Cons:

• Aerosol can under pressure, with flammable propellants (isobutane, propane) — must be stored away from heat and open flame
• A firm/super-hold formula can feel stiffer or "crunchy" if over-applied, compared to a light-hold mousse
• Contains diazolidinyl urea, a formaldehyde-releasing preservative some sensitive-scalp users prefer to avoid
• No fragrance-free option in this line — parfum is part of the formula