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SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo
SOLIDSILK™ Seaweed Shampoo

SOLIDSILK™ Seaweed Shampoo

Regular price $29.94 $20.95 Sale

- new bar size and bundle discounts -

See sale stock here of shampoo

Ditch the plastic bottle with the salon-quality SOLIDSILK™ vegan seaweed shampoo bar.

Infused with seaweed extract and macadamia oil, this shampoo is gentle and moisturizing for your locks. It rinses clean, even in hard water. 

Our SLS-free formula is made with cleansers designed for sensitive scalps. 

Suitable for many hair types, from straight and fine, to thick, wavy, frizzy, as well as color treated hair. Our premium ingredients help your hair feel soft and manageable. 

How to Use (Short version):

  1. Wet hair thoroughly.
  2. (most hair) Rub the solid shampoo on hair lightly, first at the top of the head and then towards the base of the neck. Place it back on your soap holder. Use fingers to massage the shampoo in and create the lather. A little goes a long way. Excessive rubbing of the product on the head will cause your product to be used up much faster than normal.
  3. (brittle hair types) Rub hands on the solid shampoo until you have bit on your hands. Place it down on your soap holder, then use fingers to work shampoo into hair and create lather.
  4. Rinse well with water. (no vinegar required)
  5. Use the SOLIDSILK™ conditioner on lengths and ends.
  6. Rinse well with water. 
  7. Keep out of eyes! It is gentle but not designed to be used in the eyes, if you get a little in there then rinse gently with clean water.

How to use the SOLIDSILK™ shampoo - long version - read the post here.

Quantity options:

1 bar at regular price

3 bars (discounted 30%)

How long they can last:

These bars are highly concentrated. You are using your shower water to dilute the product instead of buying a bottle of shampoo that is mostly water. Most shampoo formulas in a plastic bottle are upwards of 75% water. 

The length of time each bar lasts depends on proper storage, how often you shampoo, how heavily you use it, hair length, curls and thickness, etc. Most people find the shampoo lasts about half the time of the conditioner.

Typically for a long haired person with lightly wavy to straight hair who shampoos every 2-3 days, the 1.5 oz (42.5g) bar will last around 2-4 months. The 3 pack, 4.5 oz total (127.5g) would last around 6-12 months. These are rough estimates based on customer feedback and will vary per person. 

1.5 oz (42.5g) bar - can last 30-60 washes
1.5 oz (42.5g) x 3 bars = 4.5 oz (127.5g) - can last 90-180 washes


This solid shampoo is wrapped in paper for shipping.

About our Ingredients:

Sodium Cocoyl Isethionate - plant derived cleanser for creamy bubbles, exceptionally mild and gentle  - SLS and SLES free

Sodium lauroyl methyl isethionate - plant derived cleanser for gentle foaming - SLS and SLES free

Cocamidopropyl betaine - plant derived cleanser that helps with mildness on the scalp - SLS and SLES free

Cetyl Alcohol - plant based stabilizer and thickener

Sodium cocoyl methyl taurate - plant derived cleanser to remove built up oils and gently lift away grime - SLS and SLES free

Cocoa butter - healthy and softening hair conditioning ingredient (from the cocoa plant) for shiny locks.

Behentrimonium methosulfate - gentle plant-based conditioner

Seaweed extract - imparts proteins and minerals to hair shaft to help with damage

Propanediol 1,3 - a plant derived moisturizer

Fractionated coconut - a lighter version of coconut oil that won't weigh down your hair but instead leave it lightly moisturized

Sodium stearate - plant derived texture ingredient and foaming cleanser

Cetearyl Alcohol (and) Polysorbate 60 - non toxic plant based stabilizer and thickener

Macadamia esters - a light version of macadamia oil to create shine and softness naturally

Butylene glycol - conditioning agent 

Phenoxyethanol* (and) Caprylyl Glycol (and) Sorbic Acid - preservative to keep your stick fresh in the medicine cabinet - paraben-free *used at less than 1%

Essential oil blend - Rosemary, Eucalyptus, Mint - a clean and refreshing but light scent

Citric acid - preservative and pH adjuster - naturally found in citrus fruits 

by No Tox Life
SOLIDSILK™ is a trademark of Earth & Daughter, LLC

Customer Reviews

Based on 259 reviews
Truly silky--but keep it dry between uses

I have tried several solid shampoos, but this one may be the best. I immediately loved how it made my thin, fine hair feel: soft and silky, and not weighted down, even in our hard well water. But I kept it in our small shower, and it became very gooey, making it messy to use. I'm going to try again, because I like the product so much, but this time I'll keep it outside the shower to dry, and move it back and forth between uses. My short hair doesn't need conditioner--and I love that this formula does not need a vinegar rinse as a follow-up. Thank you once again, No Tox Life!

Sydni S.

Okay so not going to lie I was a little skeptical about using an all natural shampoo and conditioner, but I must say I love love love this product! The very first shower I took and used this product I felt instantly refreshed and the cleanest I've ever felt. I also bought the body was 3 pack variety scent which I also loved. I highly recommend this product to anyone and everyone!

Amy B.
Great product

We had been looking to switch to solid shampoo and conditioner and this had been great to use!

Mariah P.

Solid Seaweed Shampoo

Emily D.
My favorite

I have tried many shampoo bars. This is my fav, lots of moisture!

Ramona B.
Not your fault.

I love your products. Unfortunately, I have very hard and they did not work well.
As I said, Not You Fault❤️

Surprisingly silky!

My hair has been getting coarser as it turns grey, so I didn’t expect much from a bar of shampoo. Frankly, I just wanted to check having tried a more eco-friendly option off of my to-do list. I’ve been pleasantly surprised to find that this shampoo and conditioner has restored the texture of my hair to its original soft luster. My husband likes it too, although he doesn’t bother with the conditioner.
Just bought a few more bars for my bathroom “pantry.”

Olivia G.
Decent enough- I overall like it

So overall I do like this shampoo. At first, I found it wasn't working. I normally wash my hair every other day, by the second day it looked as if I never washed my hair at all, I was so greasy. I contacted NoTox- they suggested I use more than I was using. (They answered very quickly and offered to do research on my old shampoo to compare and potentially find the problem, but I knew I just probably needed to use more) That definitely helped. My hair is very thick (as well as long) and the soap wasn't penetrating the under-layers of my hair. I do find that I still look a little greasy sometimes on the second day depending on how much I used, but it's definitely bearable and not too noticeable.

However, as a consequence of needing more, I go through it more quickly. I ordered in early August, but I contacted NoTox on August 19- I should meet the 1 month minimum for the sample bar (this review was placed on Sep. 3). It is a little expensive for 1 month's use for me. I'm going to try other brands to see how they compare.

As for the positives, I did have a very itchy, irritated scalp for months using my old shampoo. I had woken up scratching the back of my head more than once. After switching, that went away completely. My hair on wash days is very soft as well. Other than my personal cost-to-use ratio, I quite enjoy this shampoo. If I find other brands don't work as well or I don't like them as much, I'll probably be a repeat customer.

Victoria S.A.
Love it

Wasn’t sure how it would clean but it does a great job and leaves my moderately curly, slightly coarse hair clean, bouncy and pretty tangle free. Lathers like a champ, so don’t use too much. Overall I am happy and would purchase again. Don’t know how long it lasts as I don’t wash my hair every day or even every other day some times. Gets like that when you get older and realize all the washing is pretty damaging to hair life and growth.

Nancy J.
Love my No Tox products!

The shampoo, conditioner and dish soap are amazing!