Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
I am a beginner and this helped me achieve exceptional results. Literally so so easy. Tip is to clean nails with alcohol before apply this with sns powder. I used this along with the Tomicca bas/top coat & activator defnitely purchasing this Brand regularly now.