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Transform your hair overnight with the Joico Defy Damage Sleepover Overnight Nourishing Treatment. This innovative leave-in treatment is designed to deliver intense hydration and repair while you rest. The no-rinse formula makes it incredibly convenient—simply apply to clean, towel-dried hair before bed and wake up to softer, smoother, and stronger hair. Whether you have dry, damaged, curly, or relaxed hair, this treatment works to restore your hair’s natural beauty from the inside out.
For best results, apply the Joico Defy Damage Sleepover Treatment to clean, towel-dried hair. Section your hair and distribute a generous amount evenly from mid-lengths to ends. Comb through to ensure even coverage. Do not rinse. Style as usual or simply leave in overnight. In the morning, style as desired. Use 2-3 times per week or as needed for ongoing repair and hydration.
This treatment is perfect for anyone experiencing dryness, damage, breakage, or split ends. It’s especially beneficial for those with curly, coily, or textured hair (including 4C and relaxed hair) that requires extra moisture and bond repair. It’s also an excellent choice for low porosity hair that needs lightweight hydration without protein overload, and high porosity hair that craves deep nourishment. Whether you’re a busy professional or a parent with limited time, the overnight application saves you precious minutes while delivering salon-quality results.
Joico is a trusted brand in professional haircare, known for its advanced bond-building technology and high-quality ingredients. The Defy Damage Sleepover Treatment stands out because it combines the convenience of a leave-in with the reparative power of a deep conditioner. Unlike traditional masks that require rinsing, this treatment allows the ingredients to penetrate deeper overnight, maximizing repair and hydration. The inclusion of Arginine and Keratin ensures your hair gets the essential building blocks it needs to become stronger, smoother, and more resilient. Plus, it’s free from harsh chemicals and safe for color-treated hair. Choose Joico Defy Damage for a simple, effective solution to damaged hair that fits seamlessly into your nightly routine.
We usually dispatch orders within 3 business days. UK delivery usually takes 3–7 working days after dispatch. If an item is dispatched from an international warehouse, delivery may take 7–21 working days. Tracking is provided after dispatch.
Avelisse offers clear post-purchase support and a 30-day return window where eligible. Please check the store returns policy before sending an item back, because final eligibility can depend on product condition, hygiene exclusions, packaging, proof of purchase and whether the return request is started within the stated return window.
Use the product description, available variants, product images and collection filters to compare suitability, finish, shade, size, texture or routine step. For beauty products, always review the ingredient list, directions, warnings and usage information on the product packaging before applying, especially when choosing skincare, haircare or body care for a specific concern.
Ingredient lists, shade details, materials and suitability notes can change by batch or supplier. Check the product packaging first, compare any allergens or sensitivities before use, patch test where appropriate and stop use if irritation occurs. If you are unsure whether a product is right for you, seek professional advice before applying it.
Why shop with Avelisse
Checkout is handled securely through Shopify.
Returns information is written plainly before purchase.
Delivery messaging is set up for United Kingdom shoppers.
Support routes are available for order and product questions.
Products are organised for easier beauty discovery.
