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TS.02/Tt : Tensile Strength Hair Treatment Mask

Regular price
$48.00
Regular price
Sale price
$48.00
Shipping calculated at checkout.
Size: 300 mL / 10.1oz

Instant strength. Instant gloss. Instant bond repair.

One 5-minute treatment for hair up to 3x stronger, instantly — with clinically-proven results that build over time. No protein, no keratin, just proprietary next-gen bond science (TENSILYX™) with extensive clinical testing on every hair type and curl pattern from 2a-4c. The viral treatment trusted by world class salon professionals, now for use at home.

Free Shipping Over $50 | 10% OFF First Order | Easy Returns

Key Benefits
  • Instant + Long-Term Results, Together
  • Clinically Proven. Third Party Lab-Tested
  • Strength Without Protein or Keratin
  • Extensive clinical testing on every hair type and curl pattern from 2a-4c
  • 5-Minute Ritual, Salon Results at Home

The Ultimate in Damage Repair & Strengthening:

TS.02 / Tt is formulated with our trademarked ingredient structure called TENSILYX to help increase the tensile strength of your hair and help build solid bridges between broken hydrogen and disulfide bonds in your hair due to chemical services, environmental damage, UV damage, or everyday mechanical damage from heat tools and sytling.

Long Lasting Strength and Restorative Power:

The molecular structures in TS.02 / Tt have been clinically proven to remain in your hair even after multiple washes, maintaining strength and shine over time. Due to this, TS.02 / Tt can hep protect your hair from future damage during chemical and color services.

Smoother, Softer, and Stronger:

In just 5 minutes, TS.02 / Tt helps build moisture and shine in your hair, creating smoother texture and hair that's easier to style, blowdry, and color in future services.

Works on ALL Hair Types, Textures, and Curl Patterns:

FILAMENT SCIENCES tests all its products on all hair types, textures, curl types, and melanin levels. All products are optimized for color-treated hair and safe for everyone.

Description

Dramatically improve hair’s tensile strength, help repair broken bonds, and visibly restore hair’s healthy appearance and texture with this intensive strengthening and moisturizing treatment mask. Utilizing adaptive chemistry, TS.02/Tt is formulated with patented long-chain molecules combined essential fatty acids, polyphenols, and antioxidants to help treat weak or compromised hair due to color, chemical services, heat treatment, mechanical damage, or environmental aggression.  TS.02/Tt has been developed alongside world class professional hair stylists to guarantee quality and efficacy.

 

 

Works on all hair types & textures, including all curl patterns 2A–4C.

 

Optimized for color-treated or chemically-enhanced hair.

 

Vegan, sulfate free, paraben free, no SLES, no silicones, no dyes, low fragrance load, no allergens detected. 

 

Thoroughly tested in third party labs as safe for everyday use with hair and skin interaction.

How to Use

TS.02 / Tt is an easy 5 minute hair treatment mask that is applied after you cleanse your hair.

  1. Shampoo thoroughly as usual. Ring out excess water, or if possible towel dry hair slightly. Do not condition your hair yet.
  2. Apply TS.02 / Tt throughout your hair and work through roots to ends. Leave in for 5 minutes to allow for processing.
  3. Rinse out and condition / style with your favorite products as usual!

TS.02 / Tt is safe for everyday use and is recommended to use 2-3 times per week to maintain best results.

HEALTH & SAFETY COMMITMENT

FILAMENT SCIENCES thoroughly tests and monitors the use of its products and ingredients. We are vehemently opposed to animal testing and ensure that TS.02 / Tt and any products we developed follow strict protocol for microorganism, skin patch, and allergy testing. We also work with world class professional hair stylists to test our products alongside chemical processes in a salon environment to ensure safety on your hair and scalp.

INGREDIENTS

INGREDIENTS: WATER / AQUA / EAU, CETEARYL ALCOHOL, BEHENTRIMONIUM CHLORIDE, CETYL ALCOHOL, COCOS NUCIFERA (COCONUT) OIL, ISOAMYL LAURATE, SHEA BUTTER ETHYL ESTERS, GLYCERIN, FRAGRANCE / PARFUM, PHENOXYETHANOL, POLYCITRONELLOL ACETATE, ISOPROPYL ALCOHOL, HYDROXYPROPYLGLUCONAMIDE, UNDECANE, CETRIMONIUM CHLORIDE, PANTHENOL, HYDROXYPROPYLAMMONIUM GLUCONATE, GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE, TRIDECANE, BUTYROSPERMUM PARKII (SHEA) BUTTER, ORBIGNYA SPECIOSA KERNEL OIL, ETHYL LINOLEATE, ETHYL OLEATE, ETHYLHEXYLGLYCERIN, CRAMBE ABYSSINICA (ABYSSINIAN) SEED OIL, CITRIC ACID, PERSEA GRATISSIMA (AVOCADO) OIL, HELIANTHUS ANNUUS (SUNFLOWER) SEED OIL, ASTROCARYUM MURUMURU SEED BUTTER, TARTARIC ACID, BENZYL ALCOHOL, SODIUM BENZOATE, PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE, POTASSIUM SORBATE, TOCOPHEROL, SODIUM HYDROXIDE

Fragrance Allergens: None

Decoding our Product Names

FILAMENT SCIENCES uses a distinct nomenclature to name our products. Each letter and number pattern correspond to specific attributes of the product.

Naming Convention:

  • First two letters = Product Benefit
  • Number = step in the care routine the product is used.
  • Last two letters = First and last letter of the product type

In the case of TS.02 / Tt:

TS = Tensile Strength

02 = Indicates the second step in your care process (applied after Shampoo)

Tt = Treatment as the product type

USE WITH HAIR EXTENSIONS

TS.02/Tt is safe to use on hair extensions, however the ingredients in FILAMENT can act similarly to ingredients in traditional conditioners so please follow the instructions given you by your hair artist regarding using conditioner on your extensions. Generally speaking, you will want to avoid applying FILAMENT to any glue, tape-in, or adhesive point of the extension as it might cause slippage or degradation of its bond to your hair. Simply put, if you use conditioner on your hair, you can use FILAMENT on your hair!

Blue bottle of Filament hair treatment on a light blue background
Bottle of Filament hair product with feature text on a light blue background
Before and after comparison of hair using the Filament product.
Product with text describing Tensilyx, Anti-Frizz & Smoothing, and Biome Protection features on a light blue background.
Advertisement for Tensilyx with molecular structure illustration on a blue background
Blue-themed advertisement for hair care product with text about instant strength, anti-frizz, and clinical smoothing.
Diagram of hair structure with TENSILYX branding and text explaining its function.
Scientific diagram showing TENSILYX penetration in hair fibers with FILAMENT branding.
Before and after hair transformation showing dry, damaged hair compared to healthy, smooth, styled blonde hair after treatment.
Ultra-rich nourishing cream with text highlighting benefits on a light blue background
TS.02/Tt  :  Tensile Strength Hair Treatment Mask TS.02/Tt  :  Tensile Strength Hair Treatment Mask
Illustration of hair repair and scalp protection with text on a blue background
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Blue gel container with &
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FILAMENT bottle surrounded by transparent containers on a blue gradient background

Experience Clinically-Proven Stronger, Smoother Hair Instantly

Close-up of a person's head with long brown hair on a white backgroundClose-up of a person's head with long brown hair on a white background

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UNRETOUCHED IMAGES
*Results may vary. Results achieved on color treated hair after shampooing once, then applying FILAMENT TS.02/Tt. No conditioner or additional styling products were used.

FREE SHIPPING over $50
MONEY-BACK GUARANTEE easy returns
10% OFF first order

The FILAMENT SCIENCES Guarantee

  • Cruelty Free

    Never tested on animals

  • Free & Clear

    Paraben Free, Sulfate Free, Vegan, Gluten Free, Silicone Free, Dye Free.

  • Safety Tested

    Tested rigorously for safety, purity, & allergens.

  • Performance Tested

    Developed with world-class professional hair stylists.

Customer Reviews

"After just a few uses, my hair feels so much stronger and less prone to breakage. This mask brought my dry, brittle hair back to life. My hair feels smooth, healthy, and full of bounce again!"

Samantha G.

"The hair mask is magic in a bottle! My hair feels stronger, thicker, and way more resilient. No more shedding in the shower—just soft, shiny, healthy strands that look amazing!"

Laura L

“TS.02/Tt is a game changer for my curls! It leaves them so soft, defined, and frizz-free. Finally a mask that truly understands my hair!!”

Bella P.

I have SUPER curly hair, been bleaching it my entire life. Been using FILAMENT and definitely stronger hair. Much better than K18 I used in the past. Hair so smooth.

Lauren R.

"I’ve been using the K18 repair hair mask for years, and I can gladly say I have switched to TS.02/Tt. It leaves my hair feeling shiny, strong, and healthy. It has become an essential in my hair routine.”

Allison W

Customer Reviews

Overall rating: 4.6 / 5 from 465 reviews.

I have natural grey hair that was damaged and discolored from a PuraLuxe treatment. My hair was straw like with no weight, body, or life of any kind. Plus the combo of the treatment + high heat turned my silver hair yellow. One 10 min filament session under a shower cap made all the difference in the world. The color is still horrible but my hair feels alive again and isn’t snapping or hanging like a corpse on my head. Once per week seems to be the sweet spot with a super conditioning, protein free mask in between. Awesome product that I will never be without. Thank you!🙏

TS.02/Tt : Tensile Strength Hair Treatment Mask

My hair was dry, parched and frizzy! I’ve tried numerous masks and conditioners, and nothing helped! After the first use of this product , my hair was transformed! Can’t edit to use it again !

TS.02/Tt : Tensile Strength Hair Treatment Mask

Holly Wow! This stuff is freaking AMAZING! I have very curly, frizzy hair, even with Keratin my hair has frizz. I used this for the 1st time yesterday and my hair is so soft, smooth and shiny, even after sleeping on it. I live in South Florida so needless to say our humidity is 100% all day (It's August and in the middle of summer). Even with the Florida heat and humidity my hair has not frizzed. I love it and will for sure continue to buy it. You will not regret getting this!!! This is the absolute best product I have ever used on my hair.

TS.02/Tt : Tensile Strength Hair Treatment Mask

I expected to have smooth shiny and manageable hair. It was extremely dry , straight and extremely frizzy. Almost worse than before. Very disappointed , so sorry, can’t recommend this product.

TS.02/Tt : Tensile Strength Hair Treatment Mask

Just used it for the first time … it felt amazing as I rinsed it out after ten minutes … I’ve partially (75%) dried it with my Dyson, and it feels very nice and soft I plan to keep using it and hope that with time I’ll feel the tensile strength improve more and more… very excited about this product:)🖤🤍🖤

TS.02/Tt : Tensile Strength Hair Treatment Mask

This product may help with breakage but that’s it. I have 3a hair type and it doesn’t help with frizz and smoothness. Not going to purchase again. Just another expensive over hyped , untruthful marketing on social media.

TS.02/Tt : Tensile Strength Hair Treatment Mask

I chose this product because it does work for you. It seems to be transforming my high porosity problem areas so I don’t have to do the guess work.

TS.02/Tt : Tensile Strength Hair Treatment Mask

You won’t post this because it’s not a positive review. I feel for Instagram marketing & thought it would help hydrate & improve the texture of my hair & it did neither & for $50+ total rip off. I wish I could return it & have that money for something that works or groceries or gas these days! Very disappointed & would never buy again or recommend which if you made really good product you would have gotten a lot of referrals from me. I don’t see how you’ll stay in business charging what you do for a subpar product. Signed Disappointed & $50 poorer

TS.02/Tt : Tensile Strength Hair Treatment Mask

FAQs

What is Tensile Strength?

Tensile strength is the most important measurement of the health of your hair, and is a standardized measurement across the spectrum of all human hair. Scientifically, Tensile Strength defined as the amount of Force needed to break a single strand of hair. 

The healthier and stronger your hair is, the higher your Tensile Strength is, and the harder it is to break or become damaged.

There are many threats to tensile strength and it’s important to preserve your hair’s healthy biome with products that chemically build up your hair’s Tensile Strength.  Low Tensile Strength is the cause of damaged, unhealthy, and broken hair.

What is TENSILYX?

TENSILYX™ is a unique and proprietary compound developed by FILAMENT to improve hair’s Tensile Strength and prevent long-term damage.  TENSILYX™ is comprised of patented long chain molecules + essential fatty acids and protein structures which help to increase hair’s Tensile Strength by helping to repair broken hydrogen and sulfide bonds due to chemical, mechanical, and environmental damage.  

As bonds within the hair are broken and
hair becomes weak, TENSILYX™ inserts itself between the broken bonds and creates a fortifying bridge.  Hair is restored to a healthier, stronger state, is more manageable, and can withstand future chemical services with less damage incurred.

How does FILAMENT TS.02 / Tt Work?

TS.02 / Tt works at the molecular level of hair to help bridge broken bonds in the hair that cause damage, split ends, lack of moisture, and rough texture. Our unique molecular compound, TENSILYX, combines patented long-chain molecules with essential fatty acids and antioxidants to help restore tensile strength, shine, moisture, and smoothness to damaged hair.

With use over time, hair has increased tensile strength.

Is FILAMENT Safe to Use Every Day?

Yes, all FILAMENT SCIENCES products including TS.02 / Tt are tested extensively with professional stylists and chemists to be safe for everyday use.

TS.02 / Tt can be used alongside any chemical service or hair product routine.

What does TS.02 / Tt Mean?

FILAMENT SCIENCES uses a distinct nomenclature to name our products. Each letter and number pattern correspond to specific attributes of the product.

Naming Convention:

  • First two letters = Product Benefit
  • Number = step in the care routine the product is used.
  • Last two letters = First and last letter of the product type

In the case of TS.02 / Tt:

TS = Tensile Strength

02 = Indicates the second step in your care process (applied after Shampoo)

Tt = Treatment as the product type