Prolong Lash Cleanser is the number one Lash Cleaner on the market!
It is VEGAN, 
OIL FREE,
FRAGRANCE FREE, GLYCERINE FREE, GLYCEROL FREE, ETHANOL FREE, PARABENS FREE AND HAS NO ARTIFICIAL COLOR!
Prolong is ph balanced to ensure the removal of all oils, makeup, skin cells, etc from the face and lash line! Remember the cleaner the lash, the better the retention and application process!
Prolong ingredient labels
40 X labels £4.99 
A pH number refers to how acid or alkaline a
liquid is, measured from 0-14. Prolong Lash
Cleanser has a pH level of 7 which is neutral or
balanced. Using a pH balanced product on your
face is important to breakdown oils and dirt but
still protects the acidic layer of your skin that
assists in retaining moisture and keeping out
bacteria.
The manufacturer recommends that Prolong Lash Cleanser Concentrate is diluted at a ratio of ⅓ concentrate to ⅔ distilled water, mixed in a sterilized empty foaming pump bottle. Exact measurements will differ depending on the size of your empty foaming pump.
How to use: Apply to entire face and lash line 2x a day for best results
Recommended Dilution: mixed one part Prolong Lash Cleaner two parts distilled water into a foam pump bottle. 
VIDEO HERE HOW TO MAKE UP PROLONG BOTTLES: 
https://youtu.be/xJdxvrbYkx0
INGREDIENTS: Rosa Centifolia (Rose) Flower Water, Aqua (Water), Lauryl Betaine, Acrylates/Beheneth-25 Methacrylate Copolymer, Triethanolamine, Phenethyl Alcohol, Phenoxyethanol, Sodium PCA, Vitis Vinifera (Grape) Seed Extract.
Disclaimer: This product is for professional use only. If lash techs are doing the private label to retail, you would need to let your insurance company know to make sure it is covered.