Beauty, Haircare

Product Fails: Part 2 – Does light degrade shampoos efficacy?

Sunlight. Is this the culprit?

I specifically refer to Garnier Ultimate Blends Shampoo: The strength restorer (Honey Treasures). They really need to work on the name of this shampoo. Can I suggest Garnier Honey Shampoo for the sake of time?

So the question I am asking myself right now is does light degrade shampoo? I had never even considered this question until earlier this week when I was in the shower using this shampoo asking myself WTF is going on?

So let’s dive in. I bought this shampoo for several reasons:

  1. I was drawn to the packaging (it’s a pretty honey colour, funnily enough),
  2. The idea of honey appealed to me (who doesn’t like honey?),
  3. It smelled nice when I opened the bottle (in store, you have to do the obligatory smell test) and you guessed it, it smelled like…lavend…honey, it smelled like honey.
  4. But most likely it was cheap. Honestly, that was probably the reason. It was a lot of shampoo for not a lot of money. Sold. It’s currently being sold in Superdrug for £1.98 for 360ml.

So to the point. The shampoo failed me. It failed to do it’s basic duty. That being, cleaning my hair. I had transferred the shampoo to a clear glass pump action bottle – it looked nicer and it’s economical (I can control how much I use with a pump). When in the shower I used easily 20 pumps of shampoo and it didn’t lather at all. The gel like substance just moved around my hair and then ran out with the water. I tried to move it around and lather it up but it was having none of it. I could tell my hair wasn’t thoroughly clean from the way it felt. In the name of science, yes, maybe I should have left it at that and got out the shower and dried my hair to determine if it was clean, in order to fully be able to report whether the shampoo not lathering impacted on its ability to clean my hair. However, I wanted clean hair for sure so yes, I used another shampoo after. Strangely I had used the same bottle of Garnier shampoo previously and it lathered with no problems but now it seems ‘inactive’.

The ingredients:

Aqua / Water, Sodium Laureth Sulfate, Cocamidopropyl Betaine, Sodium Lauryl, Sulfate, Glycol Distearate, Sodium, Chloride Amodimethicone, CI 19140 / Yellow 5, CI 15985 / Yellow 6, Guar Hydroxypropyltrimonium Chloride, Sodium Benzoate, Sodium Hydroxide, PPG-5-Ceteth-20, Trideceth-6, Salicylic Acid, Mel / Honey, Limonene, Benzyl Alcohol, Benzyl Salicylate, 2-Oleamido-1, 3-Octadecanediol, Propolis Extract, Carbomer, Cetrimonium Chloride, Citric Acid, Coumarin, Royal Jelly, Parfum / Fragrance

I am not going to go in to all the ingredients on this one, however as you can see it has the 2 known SLS ingredients used for their foaming abilities. It should be foamy!!

I am currently using a sulphate free shampoo and as we know it is the sulphates that contribute to bubbles and foam, and today even the sulphate free shampoo had more lather going on than the Garnier.

I am so confused by this Shampoo.

So I am asking myself now is a shampoo that is meant to lather but doesn’t lather anymore still effective at cleaning hair? I don’t have the answer. I will point out some possibilities, some extenuating circumstances, some variables to consider. Maybe the shampoo had expired? However it looked, felt and smelled like it was meant to. It didn’t look like it had gone off in any way. Maybe the fact that I transferred it to a clear glass bottle resulted in light degrading the product. Maybe the light degraded its lathering abilities? Again, I don’t have the answer. I have tried to research the question about light degrading shampoo or light degrading sulphates specifically but I can’t find anything specific and anything that comes back is very very sciency. If you find anything please let me know as I am really interested in knowing if light is a problem before I decant anymore products in to glass bottles.

S x

5 thoughts on “Product Fails: Part 2 – Does light degrade shampoos efficacy?”

  1. This is super interesting! I’d never thought about light degrading shampoo (or hair products in general) and it really is strange that there was no lather; it’s not uncommon to see shampoos in clear bottles, so I doubt it’s anything you’ve done. (I’ve never tried the shampoo from that range, although the matching conditioner is a family favourite!)

    Liked by 1 person

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