Session is for hair and styles that need the most support: thick, strong or stubborn hair that drops lighter sprays, and updos, sleek looks or occasion styles that have to last through wind and humidity. Schwarzkopf rates it as suitable for all hair types and lengths.

If you want a softer, touchable finish, Elastic or Freeze in the same range will feel lighter. Session needs no special technique; it goes on dry, finished hair.

When a style absolutely has to stay put, Session is the one to reach for. It pairs extra strong, long-lasting hold with a moisture shield against humidity and heat protection, and it still finishes shiny and brushes out cleanly at the end of the day.

• Finish your style and make sure hair is dry.
• Hold the can about 30 cm (12 in) away and spray evenly over the style.
• Build up in light layers where you need the most hold.

Session is the strongest of the OSiS+ hairsprays and is built to hold up against humidity, wind and heat up to 230°C / 450°F. It still brushes out without flakes and leaves hair with a shiny finish.

That much hold is more than fine hair or soft, movable styles need, and hair will feel set rather than touchable. It contains alcohol and fragrance, so sensitive users may prefer to limit how often they use it.