Theorem - Product Catalog - The Theorem Method
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Specialist ID 100423
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Spectra Purple Shampoo
TH16

Spectra Shampoo

Blonde Boosting Shampoo

For blonde and gray hair

  • Description
  • Directions
  • Ingredients

Hair when bleached tends to need a little extra TLC to revive the color to correct any yellow or brassy tones. It is important to nourish your hair and repair the damage due to over processing or heat damage. Gray hair needs some extra love too as it can be coarse and dry. Spectra shampoo vividly transforms your blonde and gray hair to be soft, toned, and live its best life.

Thoroughly wet your hair. Apply liberally to hair, focusing on your roots. Massage well to create a lather. To boost foam, add additional water. Leave on for a few minutes. Rinse thoroughly and follow with Spectra conditioner.

Water,Coco-Betaine, Sodium Cocoyl Isethionate, Disodium Laureth Sulfosuccinate, Steareth-100/PEG-136/HDI Copolymer, Decyl Glucoside, Glycol Distearate, Sodium Chloride, Quaternium-80, Silicone Quaternium-13, Linum Usitatissimum (Linseed) Seed Extract, Guar Hydroxypropyltrimonium Chloride, Trimethylsiloxyamodimethicone, Phenoxyethanol, Polyquaternium-73, Laureth-3, Tocopheryl Acetate, Retinyl Palmitate, Anthemis Nobilis Flower Extract, Trisodium Sulfosuccinate, Trideceth-12, Polyquaternium-7, Fragrance, Fibroin, Sericin, Xylitol, C11-15 Pareth-7, Sodium Isethionate, PEG-150 Pentaerithrityl Tetrastearate, Glycerin, Hydroxypropyl Starch Phosphate, PPG-2 Hydroxyethyl Cocamide, Ext. Violet #2 (CI 60730), Caprylyl Glycol, Hydroxyacetophenone, C12-16 Pareth-9, Folic Acid, Citric Acid, Tocopherol, Ethylhexylglycerin, Hexylene Glycol, Tetrasodium Glutamate Diacetate, Hexyl Cinnamal, Linalool, Hydroxycitronellal.

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Testimonials

Raquel S.

"Wow’d by the softness of my hair after using it once! "

Tiffany M.

"Smells amazing."

Jess V.

"Smells really good- love how her hair feels after one use."

Hannah L.

"I loved the way it feels on my hair. Super easy to brush through after the shower."

Alissa

"AMAZING PRODUCT! "

Valerie V.

"Loved it - using it since 03/2020"

Rebecca B.

"Loved it - using it since 03/2020"

Alex

"The smell was amazing! Hair was noticeably soothed."

Allison M.

"Loved the way the hair effortlessly blow dried out and have great shine."

Brooke D.

"My long hair is such a pain to brush and after one use I noticd it was smooth and much easier to comb through."

60-Days Guarantee

60-Days Guarantee

We have so much faith in our products that we offer a 60-day, no quibble, money-back guarantee. If you don’t love our products, just send it back to us for a full refund.

Shipping

Shipping

Once your order is confirmed shipped, you will receive your items in 5-7 business day.

Free Shipping

Free Shipping

Free Shipping Spend $99 or more and shipping is on us OR become a Subscribe & Save customer!

60-Days Guarantee

60-Days Guarantee

We have so much faith in our products that we offer a 60-day, no quibble, money-back guarantee. If you don’t love our products, just send it back to us for a full refund.

Shipping

Shipping

Once your order is confirmed shipped, you will receive your items in 5-7 business day.

Free Shipping

Free Shipping

Spend $65 or more
and shipping is on us!

Discover More

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Volumizing Root Serum.

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Spectra Purple Shampoo
SKU: TH16
Category: All
item #
Spectra Purple Shampoo
sales price
$29.99
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$26.99
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20.99
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29.99
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Our Products.

The Theorem Method is a 3-part haircare system that offers a simple solution to healthier hair.
Our simple 3-part system offers lightweight, nourishing solutions that support healthy hair growth while mending
damaged, brittle hair. Resulting in thicker, longer, stronger, and healthier hair.

Fusion

Nourishing Scalp Oil

For dry hair and scalp

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Spiral

Soft Curls Leave-In Conditioner

For wavy, curly, coily, textured and porous hair types

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Helix

Conditioning Curl Cleanser

For naturally wavy or curly hair

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The Method

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The Curly Method

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The Blowout Method

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Square Root

Volumizing Root Serum.

For Fine, Thinning Hair.

Shop now

Density

Deep Conditioning Repair Mask.

For chemically treated, colored or heat damaged hair.

Shop now

Sugar Pi

Damage Recovery Oil.

For dry, frizzy hair and split ends.

Shop now

Spectra

Blonde Boosting Shampoo

For blonde, highlighted or gray hair

Shop now

Spectra

Blonde Boosting Conditioner

For blonde, highlighted or gray hair

Shop now

Spectra Duo

Blonde Boosting Duo

For blonde, highlighted or gray hair

Shop now

Infinity

Hydration Shampoo

For dry, damaged or frizzy hair

Shop now

Infinity

Hydration Conditioner

For dry, damaged or frizzy hair

Shop now

Infinity Duo

Hydration Shampoo & Conditioner

Shop now

Volume

Texturizing Shampoo

For fine, thin or flat hair

Shop now

Volume

Texturizing Conditioner

For fine, thin or flat hair

Shop now

Volume Duo

Texturizing Shampoo & Conditioner

Shop now

Belle Curve

Curl Cream

Enhance & define curls

Shop now

Vector

Blowout Styling Balm

Eliminate frizz and protect from heat

Shop now

Vector

Blowout Styling Balm

Eliminate frizz and protect from heat

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Testimonials

Raquel S.

"Wow’d by the softness of my hair after using it once! "

Tiffany M.

"Smells amazing."

Jess V.

"Smells really good- love how my hair feels after one use."

Hannah L.

"I loved the way it feels on my hair. Super easy to brush through after the shower."

Alissa

"AMAZING PRODUCT! "

Valerie V.

"Loved it - using it since 03/2020"

Rebecca B.

"Loved it - using it since 03/2020"

Alex

"The smell was amazing! Hair was noticeably soothed."

Allison M.

"Loved the way the hair effortlessly blow dried out and have great shine."

Brooke D.

"My long hair is such a pain to brush and after one use I noticd it was smooth and much easier to comb through."

60-Days Guarantee

60-Days Guarantee

We have so much faith in our products that we offer a 60-day, no quibble, money-back guarantee. If you don’t love our products, just send it back to us for a full refund.

Shipping

Shipping

Once your order is confirmed shipped, you will receive your items in 5-7 business day.

Free Shipping

Free Shipping

Spend $99 or more
and shipping is on us!

60-Days Guarantee

60-Days Guarantee

We have so much faith in our products that we offer a 60-day, no quibble, money-back guarantee. If you don’t love our products, just send it back to us for a full refund.

Shipping

Shipping

Once your order is confirmed shipped, you will receive your items in 5-7 business day.

Free Shipping

Free Shipping

Spend $99 or more
and shipping is on us!

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