I promptly (literally the next day) purchased my clays from my local UK store Sheabutter Cottage (waves to the wonderful Akua!) and I finally got the results last night after a bit of bother with the microscope which needs a light bulb replacement, darn thing!
I used my own shed hair and imaged it:
-on its own without any washing
- washed with shampoo only (2 minute water rinse, 2 minute shampoo wash, 2 minute water rinse and air dried for 4 hours)
-washed with bentonite clay only ( 2 minute water rinse, 2 minute bentonite clay wash (pre-mixed clay with water), 2 minute water rinse and air dried for 4 hours)
-washed with rhassoul clay only ( 2 minute water rinse, 2 minute rhassoul clay wash (pre-mixed clay with water), 2 minute water rinse and air dried for 4 hours)
1. The Controls - Oily Hair and Shampooed Hair
I redid these two controls for this experiment because you always have to have a baseline of what the hair looks like prior to washing and what it looks like with a proper wash. You can therefore judge the clay washes in context of dirty and clean hair.
|Unwashed hair - Oily hair for comparison|
|Shampooed Hair - Clean hair for comparison|
2. Bentonite Clay Wash
Never having used bentonite clay, I was really surprised by how it felt, almost silky when you mix it into a paste. The cleanliness level was approximately the same as a co-wash with most of the oil layer removed and a few remnants still visible.
|Bentonite clay washed hair - Most of the oil is removed with some remnants indicated in the white circles|
3. Rhassoul Clay Wash
Rhassoul did not really turn into a silky paste in the way bentonite clay did but it pretty much had a similar cleansing level. I would also rate the oil removal from hair by rhassoul clay as similar to a co-wash with most of the oil removed and some remnants visible.
|Rhassoul clay washed hair - Most of the oil is removed but some remnants (white circle) remain|
You can indeed clean your hair or to be specific, remove oil from your hair with bentonite or rhassoul clay and the level of removal is similar to co-washing!
Running warm water was used for all washes. In each wash or rinse, hair was rubbed gently to simulate normal hair washing. Hair conditioner - L'oreal Eversleek Smoothing Conditioner, Shampoo - Herbal Essences Dazzling Shine Shampoo.
Please do note that under the microscope we can see oil layers but we do not see small deposits on hair e.g hair conditioner deposits (well you actually could see them with specialised instruments but not with my microscope!). Strictly speaking this experiment will answer the question, how well will washing method X remove oil from hair.