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Jason Natural, Thin to Thick, Extra Volume Shampoo, 8 fl oz (237 ml)

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  • Product Code: JAS-00042
  • UPC Code: 078522000426
  • Package Quantity: 8 fl oz (237 ml)
  • Dimensions: 7.3 x 1.8 x 1.8 in, 0.6 lbs (0.27 kg)
Product Overview


  • Fortified with Biotin, Panthenol & Proteins
  • Strengthens & Volumizes Fine Hair
  • No: Parabens, SLS, Petrolatum, Artificial Colors or Phthalates

Our rich lathering, body-building shampoo uses gentle botanical surfactants to thoroughly purify the scalp and cleanse the hair of dirt and oil. Hair-strengthening Biotin and Panthenol wrap around the entire hair shaft to boost volume and increase hair cortex elasticity for less breakage. Plant proteins add luster and bounce. Your hair looks and feels naturally thicker, with a healthy shine.

Born in 1959, Jason was one of the first to offer personal care products without harsh chemicals. For over 50 years, we have delivered safe, wholesome, no-nonsense products that happen to really work. Our formulas don't contain petrolatum, sodium lauryl or laureth sulfates (SLS), parabens, or phthalates. And we never test on animals. We invite you to try our entire line of safe, effective, body-loving products.

Suggested Use

On wet hair, gently massage shampoo into hair and scalp. Rinse and repeat if desired. Follow with Jason Thin to Thick Extra Volume Conditioner.

Other Ingredients

Aqua (water), cocamidopropyl betaine, sodium cocoyl isethionate, sodium lauryl sulfoacetate, sodium lauroyl sarcosinate, glycol stearate, mentha piperita (peppermint) oil, acer saccharum (sugar maple) extract, aloe barbadensis leaf juice*, citrus aurantium dulcis (orange) peel extract, citrus limonum (lemon) peel extract, chamomilla recutita (matricaria) flower extract*, equisetum arvense leaf extract, panax ginseng root extract, saccharum officinarum (sugar cane) extract, vaccinium myrtillus fruit/leaf extract, biotin, citric acid, cocodimonium hydroxypropyl hydrolyzed wheat protein, glycerin, yeast extract, hydrolyzed wheat protein, hydrolyzed wheat starch, lactic acid, menthol, panthenol, phytantriol, potassium hydroxide, salicylic acid, sodium chloride, sodium citrate, sodium laurylglucosides hydroxypropyl sulfonate, sodium sulfate, wheat amino acids, alcohol*, benzyl alcohol, phenoxyethanol, potassium sorbate, sodium benzoate, alpha- isomethyl ionone, amyl cinnamal, benzyl benzoate, eugenol, linalool, fragrance (parfum)

*Certified Organic Ingredients


Caution: For external use only. Keep out of reach of children. Avoid direct contact with eyes. If rash or irritation occurs, stop use and consult a physician.

iHerb Customer Reviews
5 Stars
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1 Stars

does exactly what it says

Posted by 4824250965267532532 on Jun 12, 2016

For my surprise it is really does thickness the hair and adds a volume to it. After shampooing I use matching conditioner. Reordered 4 times and will keep on doing so. Great product!

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What's with the smell Jason?

Posted by 5600041758713355158 on May 30, 2016

This is my 2nd product from Jason. I really don't know why the distinct smell on their shampoo. Does it do the job? It made the hair dry that's why it looks thicker.

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Posted by 5619760772866349519 on May 25, 2016

have thickening/voluminizing effect, will buy it again.

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So-so after some time

Posted by oliews on May 15, 2016

Initially I quite liked this shampoo. However over time, it just feels not as good anymore. The results weren't as good as before. Sometimes I need to do a double cleanse to rid of the weird feeling on scalp. I have no idea why, really wanted to stick to this as I have a hard time finding one that works... and now I am back to trying others. Gosh

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Posted by 5101090573175968754 on May 14, 2016

Not my favourite, I didn't notice any different in volume or thickness of my hair. The smell is okay, clean and minty but a little bit too artificial for my liking. It cleans my hair well, but after a few weeks of using I have some dandruff. Not sure if this is the root cause of the danduff, but I have never had this before. Won't buy again as I noticed it contains lanolin, and I didn't love the results.

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