|I have a company which i sell hair brushes and these hair brushes their bristles are made out of boar and im not sure if its 10 % made from boar or 50 or etc but im just curious to know if i can still sell them and currently i have 300 brushes left jazakallah|
In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
Hair brushes that are made from pig’s hair are not permissible to sell. This ruling is applicable whether the pig’s hair consists of 10% or 50% of the brush.
The brushes that you have may be returned to the seller for a refund. If this is not possible, then the brushes must be disposed of.
And Allah Ta’āla Knows Best
(Mufti) Abdul Azeem bin Abdur Rahman
 Raddul Muhtar, Vol. 5, page 71-72, Saeed