Skip to product information
1 of 1



Regular price $63.00
Regular price Sale price $63.00
Sale Sold out online
Tax included. Shipping calculated at checkout.

In stock

Kérastase Résistance Bain Extentioniste, a length strengthening shampoo for anyone seeking longer, stronger locks.

Why we love it

Enriched with Creatine and Ceramides, Bain Extentioniste is a breakthrough shampoo that works to improve the strength and elasticity of weakened, damage prone hair from root to tip.

The core of your hair, its fibre, is strengthened, rebuilt and sealed to provide greater protection throughout its growth, making it more resistant and minimising breakage.

How to use

Gently massage a hazelnut-sized amount of Bain Extentioniste into your scalp and hair.
Rinse and repeat application.
Leave in for 2 to 3 minutes.
Rinse out thoroughly and follow with Fondant Extentioniste.


Key Ingredients:
Creatine R: An exclusive complex composed of Creatine an amino acid that reinforces the internal structure of the hair fiber.
Ceramides: Enhances shine, promotes elasticity and moisture retention and aids in strengthening hair.
Taurine: An amino acid with protective effects on the hair, ensuring a stimulated and healthy scalp.

Full Ingredients:
Aqua / Water ? Sodium Laureth Sulfate ? Coco-Betaine ? Taurine ? Cocamide Mipa ? Sodium Chloride ? Amodimethicone ? Laureth-5 Carboxylic Acid ? Ppg-5-Ceteth-20 ? Sodium Benzoate ? Sodium Hydroxide ? Citric Acid ? Polyquaternium-10 ? Peg-55 Propylene Glycol Oleate ? Propylene Glycol ? Peg-60 Hydrogenated Castor Oil ? Salicylic Acid ? Amyl Cinnamal ? Hexyl Cinnamal ? Benzyl Alcohol ? Linalool ? Hydroxycitronellal ? Citronellol ? Limonene ? Creatine ? 2-Oleamido-1,3-Octadecanediol ? Benzyl Cinnamate ? Sodium Acetate ? Isopropyl Alcohol ? Parfum / Fragrance

*Ingredient formulations may change without notice. For the
most accurate ingredient information, always refer to the product packaging. If you notice any discrepancies on our website, kindly bring it to our attention.


All Rodney Wayne Shampoo N Things stock only genuine haircare products, from reputable and globally renowned brands. 

Online order:

  • FREE delivery throughout New Zealand for orders over $89. 
  • All orders require a signature upon delivery, however, you can log onto NZ Post and select to have your parcel redirected or left without a signature.
  • Parcel delivery is Monday to Friday only, with expected delivery within 2 - 5 working days.
  • Dangerous goods such as aerosols cannot be delivered to P.O box address and will take 5 - 7 working days for delivery.
  • Orders for digital gift cards don't count towards the free shipping threshold

Return policy

Return Policy for Online Purchases
Please choose carefully as we do not refund unless your items are faulty If you purchased at one of our physical stores please contact the store directly you can find contact details here

We are happy to exchange your items within 30 days of the date you received your order with proof of purchase at our online store at 290 Dominion Road or contact and we will arrange return shipping, providing the items are in their original condition. 

If the items are faulty, we will meet our obligations under the Consumer Guarantees Act to provide a remedy. 

Can I return a gift I received? 
You can exchange a gift providing you return it within 30 days of the date you received your item and you have the original receipt or order number.

Can I exchange an item? 
We are happy to exchange your goods within 30 days of you receiving your item, with proof of purchase, providing the goods are in their original condition.

How do I return an item?
Goods bought online can be returned at online store at 290 Dominion Road or contact and we will arrange return postage. 

Gift Cards

Gift cards cannot be returned or redeemed for cash. Any unused value on the gift card expires 1 year after date of issue.

Please treat you gift card as cash; it cannot be replaced if lost or stolen.

If you purchased a Gift Card on-line and it has not arrived, please contact the Rodney Wayne support team on

Items returned that are not in original condition or outside the 30 day timeframe

Unfortunately, with the exception of faulty items, we are unable to accept items returned that are not in their original condition or returned after 30 days of you receiving your item. Our customer services team will contact the purchaser to discuss if you would like the items to be returned to you. Any items returned under these circumstances may incur a cost to get the items to you and we will discuss this with you when our customer services team make contact to return the items to you.

Original condition includes having all tags, packaging, etc returned with the items.



View full details