You may have seen a popular skincare trend on social media for a DIY blackhead remover made by mixing glue and charcoal powder. Even if this mask has a slight exfoliating effect, skincare experts warn against it. Glue is not formulated for skincare and can cause damage in the long run. The majority of oils pulled from the skin are sebaceous filaments that your skin needs, not blackheads. Trying this mask once in your life might not be harmful to your skin, but doing this often can cause skin irritation, scarring, clogged pores, and broken capillaries.