Skip to product information
1 of 16

NATURAL SANT Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary

NATURAL SANT Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary

Regular price £37.57 GBP
Sale price £37.57 GBP Regular price
Save % Sold out

Curated for everyday beauty routines

Tracked delivery across the United Kingdom

Secure checkout

NATURAL SANT Onion Keratin DuoBox 120ml – Deep Repair & Smoothing for Dry, Damaged Hair, Frizz Control & Heat Protection with Biotin & Rosemary

Regular price £37.57
Sale price £37.57 Regular price
Save % Sold out
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Tracked UK delivery. Estimated arrival between - and -.

Product Overview

The NATURAL SANT Onion Keratin DuoBox is a professional-grade hair care system designed to rescue dry, damaged, and frizzy hair. Each 120ml duo works synergistically to deliver deep repair, long-lasting smoothness, and effective heat protection. Enriched with biotin and rosemary, this formula nourishes the scalp and strengthens hair from root to tip, making it ideal for daily use on all hair types.

Key Features and Benefits

  • Deep Repair: Onion extract and keratin penetrate the hair shaft to rebuild broken bonds, reducing breakage and split ends.
  • Frizz Control & Smoothing: Advanced smoothing agents tame flyaways and create a sleek, polished look that lasts.
  • Heat Protection: Forms a protective barrier against styling tools up to 230°C, preventing thermal damage.
  • Biotin & Rosemary Infusion: Biotin strengthens hair, while rosemary stimulates the scalp and promotes healthy growth.
  • Lightweight Formula: Non-greasy, fast-absorbing texture that won't weigh hair down.
  • Pleasant Scent: A fresh, herbal fragrance that lingers without being overpowering.

How to Use

Start with clean, towel-dried hair. Apply a small amount of the repair treatment evenly from mid-lengths to ends. Leave on for 5-10 minutes, then rinse thoroughly. Follow with the smoothing serum on damp hair before blow-drying or styling. For best results, use 2-3 times per week.

Who It Is For

This duo is perfect for anyone with dry, damaged, color-treated, or chemically processed hair. It is also excellent for those seeking frizz control and heat protection in humid climates. Suitable for all hair textures – straight, wavy, curly, or coily.

Why Choose This Product

Unlike harsh chemical straighteners, NATURAL SANT Onion Keratin DuoBox provides a gentle yet effective solution that respects your hair's natural integrity. The combination of onion extract and keratin is backed by traditional hair care wisdom and modern science. Free from parabens and sulfates, it's safe for regular use. Plus, the duo format ensures a complete care routine in one package.

Technical Details

  • Volume: 120ml (each bottle)
  • Weight: 0.372 kg
  • Color: Multicolor packaging
  • Key Ingredients: Onion extract, Keratin, Biotin, Rosemary oil
  • Product Type: Chemical Hair Straighteners category (non-damaging smoothing treatment)

Delivery in the United Kingdom

Orders are prepared with clear UK delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

Avelise is set up around straightforward post-purchase support and a 30-day returns message. 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.

How to choose

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.

Ingredients and suitability

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.

View full details