Kérastase Resistance Serum Extentioniste Treatment Serum for Faster and Stronger Growing Hair 50 ml / 1.7 fl oz
Kérastase
Kérastase Resistance Serum Extentioniste Treatment Serum for Faster and Stronger Growing Hair 50 ml / 1.7 fl oz
Why it works
- Promotes the look of stronger, healthier hair
- Helps reduce breakage and visible split ends
- Suitable for all hair types and textures
- Daily use supports longer, more resilient hair
Product profile
- Application area
- Hair
- Product form
- Serum
Delivery & care
Shipping & returns
Shipping & deliveryRates and timing for your destination
U.S. Standard: $3.90 below $100; free at $100+ · USPS · estimated 4–8 business days.
U.S. Express: $7.90 at every order value · FedEx · estimated 3–5 business days.
Services are available only where offered for the delivery address at checkout. Estimates include 1–2 business days of handling and are not guarantees.
Read the Shipping PolicyReturns30 days · free label for eligible unopened items
Request an eligible return within 30 days after delivery. The retail product, seal, and hygiene closure must remain unopened, unused, and untested.
Submit the return request online at account.giosha.com. After approval, your free prepaid return label and return instructions will appear in the request. Contact support if you cannot access the online flow.
Opened, unsealed, tested, or used products are not eligible for a voluntary return. Damaged, defective, incomplete, or incorrect goods and mandatory legal rights are reviewed separately.
Read Returns & refundsProduct Description
Product Overview
Kérastase Resistance Serum Extentioniste is a targeted treatment crafted to help encourage the growth of hair that feels stronger and healthier. Suitable for every hair type, this serum easily fits into any hair care regimen.
Key Benefits
This specialized formula is designed to help lessen breakage and reduce the appearance of split ends, supporting a more resilient hair fiber. Consistent use leaves hair looking revitalized and more luminous.
- Helps reinforce hair to minimize breakage
- Supports the look of healthier, longer hair
- Reduces visible split ends for a smoother finish
- Leaves hair feeling stronger and more resilient
Application Tips
Distribute the serum evenly through clean, towel-dried hair, concentrating on the mid-lengths and ends. For optimal results, use as a daily part of your hair care routine.
Ideal For
Perfect for those aiming to boost hair strength and enhance overall hair appearance, this serum works well on fine, thick, straight, or curly hair textures.