• SYOSS Keratin Shampoo 440 ml - Strengthening – Keratin-Infused Formula: Liquid keratin helps rebuild and – Image 1
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Gentle Cleansing: Effectively removes dirt and excess oil without – Image 2
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Frizz Control: Smoothes the hair cuticle to reduce frizz and – Image 3
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Enhanced Shine: Restores natural luster and vibrancy, making hair – Image 4
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Large 440 ml Size: Ideal for long-term use, offering excellent – Image 5
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Volume: 440 ml – Image 6
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Weight: 472 g – Image 7
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Dimensions: 45 x 81 x 211 mm – Image 8
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Packaging: 1 bottle (1 pack) – Image 9
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Brand: SYOSS – Image 10
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Keratin-Infused Formula: Liquid keratin helps rebuild and – Image 11
  • SYOSS Keratin Shampoo 440 ml - Strengthening – Gentle Cleansing: Effectively removes dirt and excess oil without – Image 12
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SYOSS Keratin Shampoo 440 ml - Strengthening & Smoothing Hair Care

SYOSS Keratin Shampoo 440 ml - Strengthening & Smoothing Hair Care

£30.49 GBP
£30.49 GBP
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SYOSS Keratin Shampoo 440 ml - Strengthening & Smoothing Hair Care

£30.49
£30.49
Save % Sold out
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Product Overview

SYOSS Keratin Shampoo is a professional-grade hair care solution designed to restore strength and shine to damaged, brittle, or over-processed hair. Enriched with liquid keratin, this shampoo penetrates deep into the hair shaft to reinforce the hair's natural structure, reducing breakage and frizz. The 440 ml bottle offers generous value for regular use, making it an essential part of your daily hair care routine.

Key Features and Benefits

  • Keratin-Infused Formula: Liquid keratin helps rebuild and strengthen hair from within, improving elasticity and resilience.
  • Gentle Cleansing: Effectively removes dirt and excess oil without stripping natural moisture, maintaining a healthy scalp.
  • Frizz Control: Smoothes the hair cuticle to reduce frizz and flyaways, leaving hair sleek and polished.
  • Enhanced Shine: Restores natural luster and vibrancy, making hair look healthier and more radiant.
  • Large 440 ml Size: Ideal for long-term use, offering excellent value for money.

How to Use

Apply SYOSS Keratin Shampoo to wet hair. Gently massage into the scalp and through the lengths of your hair. Leave on for 1-2 minutes to allow the keratin to penetrate, then rinse thoroughly. For best results, follow with SYOSS Keratin Conditioner or a matching treatment.

Who It Is For

This shampoo is perfect for anyone with dry, damaged, or chemically treated hair. It is also suitable for those with naturally frizzy or unmanageable hair looking to achieve a smoother, healthier appearance. Ideal for daily use on all hair types, including color-treated hair.

Why Choose SYOSS Keratin Shampoo?

SYOSS combines salon-inspired technology with accessible pricing. The keratin formula is backed by research to deliver visible results: stronger, smoother, and shinier hair with every wash. Unlike harsh shampoos, it maintains the hair's natural balance while providing intensive care. Plus, the large 440 ml bottle ensures you have a reliable supply for weeks of use.

Technical Details

  • Volume: 440 ml
  • Weight: 472 g
  • Dimensions: 45 x 81 x 211 mm
  • Packaging: 1 bottle (1 pack)
  • Brand: SYOSS

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

Avelisse offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, shade or size information and available variants to compare beauty options. Always check the full ingredient list and usage directions on the product packaging, and patch test new skincare or makeup products before first use.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. If you have sensitive skin, known allergies or a medical condition, patch test new products and consult a dermatologist or healthcare professional before use.

View full details
  • Free standard deliveryUsually 2–7 business days to the UK, after 1–3 days to prepare
  • 30-day returnsOn unopened items in original packaging
  • Secure checkoutProcessed by Shopify with major cards accepted
  • Real supportEmail or phone, answered by our team

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Buying guide and questions

Beauty guide

SYOSS Keratin Shampoo 440 ml - Strengthening & Smoothing Hair Care at Avelisse

Product OverviewSYOSS Keratin Shampoo is a professional-grade hair care solution designed to restore strength and shine to damaged, brittle, or over-processed hair. Enriched with liquid keratin, this shampoo penetrate...

Category Beauty
Delivery area United Kingdom
Checkout Secure checkout
Brand Syoss
Price £30.49
Availability In stock
440 mlFrizz ControlHair CareKeratin ShampooSmoothing ShampooStrengthening ShampooSYOSS

How to choose if this product fits your routine

Read the ingredient list, check the shade, size or formulation and the usage directions. Consider whether it suits your skin type or hair type, and patch test new skincare or makeup products before first use.

Questions about SYOSS Keratin Shampoo 440 ml - Strengthening & Smoothing Hair Care

Is SYOSS Keratin Shampoo 440 ml - Strengthening & Smoothing Hair Care available for UK customers?

Yes. This product is currently available on Avelisse with UK delivery.

How should I compare this with similar products?

Compare the ingredients, shade or size options, formulation, brand reputation and price. Check allergen and ingredient information if relevant to your skin or hair needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to basket area. Returns guidance is available on the product page and full terms are covered in the store returns policy.

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