- Makes hair 4x more resistant to breakage during heat styling
- Protects against heat styling, UV exposure and environmental pollutants
- Prevents colour fading for longer-lasting vibrancy between appointments
- Leave-in pre-styling formula for daily use
- Leaves hair soft, shiny and fortified after every application
Leave-In Pre-Styling Treatment That Makes Hair 4x More Resistant to Breakage
Joico Defy Damage Protective Shield is a powerful leave-in pre-styling treatment that provides comprehensive protection against the full range of daily aggressors — heat styling, UV exposure and environmental pollutants — that cause hair to lose its shine, strength and colour vibrancy over time. Clinically tested to make hair 4x more resistant to breakage during heat styling, it strengthens and fortifies while simultaneously guarding against colour fade for hair that stays healthier, more vibrant and more resilient with every daily application. At 100ml it is a practical everyday size. Find it alongside other Joico styling and treatment products in our full range.
4x More Resistant to Breakage — Clinically Tested
The 4x breakage resistance claim is tested against combing breakage on clean, damaged hair — a rigorous and relevant test condition that reflects the real-world daily stresses that heat-styled and damaged hair experiences. For hair that regularly undergoes heat styling, a pre-styling treatment that provides this level of clinically verified breakage protection makes a meaningful and cumulative difference to the long-term strength and condition of the hair over time.
Triple Protection Against Heat, UV and Environmental Damage
The Defy Damage Protective Shield addresses three distinct categories of daily hair damage in a single pre-styling step — heat protection shields against the thermal damage of straighteners, curling tools and blow-dryers; UV protection guards against the sun exposure that fades colour and weakens the hair structure; and environmental pollutant protection shields against the free radical damage that dull and compromise hair on a daily basis. For colour-treated hair in particular, the combined colour fade prevention and structural protection makes this one of the most comprehensive daily leave-in treatments available.
How to Use Joico Defy Damage Protective Shield
Apply to clean, damp or dry hair before heat styling or sun exposure. Distribute evenly through the lengths and ends and style as normal — no rinsing required. Use daily for the best cumulative protection, strength and colour vibrancy results.
Enjoy free UK delivery on all orders.
The majority of our orders are sent using Royal Mail on a signed for service. Higher ticket items may be dispatched using DPD.
- Returns accepted for 30 days
- Free return shipping
- No restocking fee
- No final sale items
