Russian/Volume lashes are the same treatment. From 2-6 lashes can be applied to one natural lash at a time. Whereas a normal Classic lash will be between 0.10mm to 0.20mm in thickness, the lashes used for Russian/Volume are finer and therefore a lighter lash, usually between 0.05mm to 0.07mm, so won’t A normal Classic lash weigh down the natural lash hence no damage will be caused. Each Russian lash fan is made by the therapist on the lash strip, this reduces clumps of glue and natural lash damage. Pre-made fans will have been glued previously and then have to be dipped again into glue to be placed onto the natural lash giving an un-natural clumpy look and could cause damage to the natural lash.