According to the search results, it is recommended to exfoliate before shaving. Exfoliating before shaving helps to remove dead skin cells and unclog pores, which can lead to a closer and smoother shave. However, it is also possible to exfoliate after shaving, but it is generally recommended to exfoliate before shaving if you have to choose only one.
Regarding the products, it is suggested to use a mild cleanser scrub to remove oil, dirt, and dead cells before shaving. Exfoliating products containing salicylic acid or beta hydroxy acids are also recommended to clear pores and reduce oil. For post-shave routine, it is recommended to apply an aftershave balm or moisturizer to soothe the skin and reduce discomfort from stinging and redness.
There are no negative aspects mentioned in the search results regarding exfoliating before or after shaving. However, it is important to avoid over-exfoliating, which can irritate the skin and cause discomfort. It is also important to choose the right products that suit your skin type to avoid irritation, such as shaving rash and razor bumps.