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Curated for everyday beauty routines
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Sebastian Professional Penetraitt Overnight Repair Serum is a concentrated leave-in treatment designed to restore vitality to dry, damaged hair. Formulated with hyaluronic acid and niacinamide, this serum works while you sleep to replenish moisture, strengthen strands, and improve overall hair health. The lightweight, non-greasy formula absorbs quickly without weighing hair down, leaving it soft, smooth, and manageable by morning.
Apply a small amount to clean, towel-dried hair before bedtime. Focus on mid-lengths and ends, especially if hair is dry or damaged. Comb through to distribute evenly. Do not rinse. Sleep with the serum in for overnight repair. In the morning, style as usual. For best results, use consistently as part of your nightly hair care routine.
This serum is ideal for anyone with dry, damaged, or chemically treated hair. It is also great for those seeking a simple overnight treatment to improve hair moisture and strength without extra effort. Suitable for all hair types including straight, wavy, curly, and coily textures.
Sebastian Professional is a trusted brand in salon-quality hair care. This serum combines advanced ingredients like hyaluronic acid and niacinamide to deliver visible results. Unlike heavy masks or oils, this lightweight serum won't leave your pillowcase greasy or cause buildup. It's a hassle-free way to wake up to healthier-looking hair every day.
Size: 3.2 fl oz (95 ml). Product weight: 250 grams. Dimensions: 50 x 50 x 28 cm. Color: Transparent. Form: Liquid serum. Packaging: Bottle with pump dispenser for easy application.
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.
