Theorie Shampoo Reviews


Most women love being adventurous when it comes to their tresses and just love to keep changing them from time to time depending on the mood.

From trying different hair colors, perming it, or straightening as well as using various hair styling tools such as blow dryers, flat iron, curling iron, a woman can easily achieve the hairstyle they want — for an instant confidence boost! 

However, applying excessive heat and too much styling can lead to dull, dry, and damaged hair.

But don’t fret! Theorie sage has created shampoos that are specially formulated to help nourish hair follicles and help restore dry and brittle hair caused by too much heat and styling.

What’s great about their product is that they only use handpicked and potent ingredients to ensure quality and real results! 

So, if you are on the lookout for a good quality shampoo that would help bring your hair back to life — Keeps hair soft, shiny, and healthy. Theory shampoo might be for you! 

In this article, we will talk about its ingredients and its pros and cons to help you decide if this is worth trying. 

If you are interested to know more about it, keep reading!

Theorie Shampoo Overview

Inspired by nature and nurtured by science, Theorie sage brand has been creating hair care products from shampoo, conditioner, to hair mask that caters almost all hair types. 

In fact, they have about 15 shampoo variants to choose from! 

Their luxurious formula helps hydrate, smoothens, detoxifies, and brightens hair to make you feel more beautiful every day! It smells amazing too! 

All their products are cruelty-free, phosphate-free, paraben-free, nitrate-free, and GMO-free, which makes it safe for colored treated and keratin-treated hair. 

Here are some of my favorites that work great for dry and processed hair!

1. Theorie Sage Helichrysum & Plum Nourishing Shampoo

Pin on Cosmetics I Use and Love

Product Description 

Theorie Sage Helichrysum & Plum Nourishing Shampoo is enriched with Helichrysum extract and Plum seed oil that conditions and strengthens hair to help reduce dryness and breakage caused by frequent chemical treatments. 

It is also composed of natural ingredients that are rich in hair nutrients like Grape seed oils, Ginkgo Biloba, and keratin. 

When it comes to scent, it has a floral and herbal fragrance from Lavender, Chamomile, Rosemary, Jasmine, Holy Basil that blends together which you’ll surely love. 

For best results, use Helichrysum & Plum Nourishing Conditioner after shampooing. 

Ingredients and Benefits:

  • Helichrysum Extract – Came from Helichrysum Italicum flowers, these botanical ingredients are rich in antioxidants that defend hair against harmful UV rays that causes free radicals and stress to the hair. 
  • Plum Seed Oil – Rich in fatty acids, Vitamin E, Vitamin C, and Vitamin A. These vitamins keep hair stronger, promote hair growth, and help prevent damage caused by heat. 
  • Grape Seed Oil – Loaded with Vitamin E, this fat-soluble vitamin deeply moisturizes hair, promotes hair growth,  helps prevent split ends caused by breakage as well adds shine to your locks.
  • Ginkgo Biloba – Revitalizes and restores shine by delivering nutrients and oxygen to the hair. 
  • Sage oil – Cleanses hair and scalp as well as maintains its optimal pH level. 

Interested? Check it out on this link!  

2. Theorie Argan Oil Restoring Shampoo : THEORIE Argan Oil Restoring Shampoo- Rejuvenate & Moisturize -  For All Hair Types - Sulfate Free - Safe for Color & Keratin Treated Hair,  800mL - Label Design May Vary : Beauty

Experience better hair days with Theorie Argan Oil Restoring Shampoo, perfect for dry and damaged hair!

It contains nutrient-rich botanical oils such as argan oil, moringa oil, grape seed oil, and vitamin E that gently cleanses hair while penetrating the hair shaft to restore its softness and shine that has been lost due to damage.

With a light refreshing scent from Green Tea, Rhubarb, Jasmine, and bergamot blend that will give you that wonderful relaxing feeling after every wash. 

For the best Argan oil hair care experience, this shampoo is best paired with Theorie Argan Oil Conditioner and Argan oil serum to get the best result!

Ingredients and Benefits:

  • Argan Oil – Contains a high amount of antioxidants, essential fatty acids, and vitamin E, this softens and hydrates each hair strand. 
  • Moringa Oil – Improves keratin production that strengthens hair to prevent breakage and split ends.
  • Grape Seed Oil – Rich in Vitamin E that restores hair’s natural shine and promotes hair growth. 
  • Sage Oil – provides cleansing property as well as protects hair against environmental stresses. 

Interested? Check it out on this link! 

Pros and Cons of Theorie Shampoos


  • Cleanses hair without weighing hair down
  • Smells great
  • Helps nourish dry and overly processed hair
  • Adds moisture to hair keeping it soft and healthy
  • Does not contain harmful chemicals
  • Contains botanical ingredients 
  • Safe for color-treated and keratin-treated hair 
  • Available in 400 ml and 800 ml bottle


  • Not totally sulfate-free 
  • A little pricey 

How to Use 

Apply a generous amount to wet hair and rinse thoroughly, safe for daily use. 

What Do People Say About It?


Theorie Shampoos gained a lot of positive reviews on Amazon, here are some of its satisfied customer’s feedback:

“I have been using Theorie shampoos and conditioners for about a year now, and I cannot believe what a difference they have made on my hair. I have fine, thin hair.. other products have frizzed out and damaged my hair terribly. With Theorie, however, the texture of my hair is like satin and my stylist always comments on how healthy it is wherever I go in for a cut. I was recently unable to find the shampoo locally and had to switch off to another brand. Within a month, my hair had become so damaged I had to get the bottom three inches cut off. I’m six weeks into using Theorie again, and my hair is still fantastic…and that’s with swimming daily in a chlorine pool (and therefore washing my hair twice a day) for the last four weeks! This is my holy grail product! 10/10 would recommend.”

Another review:

“I have been a loyal Theorie user for several years now and as a hairstylist I have tried many, many different brands over the years but Theorie is a winner! Their products all smell AMAZING and are lightweight and effective. They also don’t leave a residue which many other brands tend to do from the silicones in their products. Not easy to find always and not cheap but worth every penny!”


A Youtuber has shared her experience with Theorie shampoo, specifically Theorie Argan Oil.

She first talked about what her hair type is to give a little background.

She mentioned that her hair is straight, intense to be on the dry side as she frequently blow-dries, and uses curling iron and flat iron to her hair. 

“These shampoos and conditioners are absolutely amazing, they add volume to your hair, they have a great smell like rose petals, and most importantly they put moisture back into your hair especially the ends, which is something very hard to find with shampoo and conditioner…”

She also mentioned that she recommended it to her mother, who has thick and curly hair, and experienced the same thing! 

Final Verdict: Is Theorie Shampoo Worth Trying?

Yes, Theorie shampoo is definitely worth trying. 

What’s great about their products is that they offer so many variants to choose from, so no matter what hair type you have or whatever your specific hair needs are Theorie shampoo has something for you! 

It’s made from botanical ingredients that are hand-picked only, so they are of the best quality. They are cruelty-free, phosphate-free, paraben-free, nitrate-free, and GMO-free.

However, its downside, even though that the brand claim they are safe for colored treated and keratin-treated hair, others are worried as it contains “Sodium Laureth Sulfate” (Sodium Laureth Sulfate is a milder form of sulfate, unlike Sodium Lauryl Sulfate) which might still strip down hairs’ natural oils, keratin and cause hair color to fade. 

But other reviews written by those with keratin-treated and colored-treated hair said that the shampoo was fine and works for them nicely. 

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