Indications: all skin types, especially normal to oily and combination skin, acne-prone and clogged skin.
Basic preparation: 1/4 tsp. salicylic acid (ask for it at pharmacy, if you cannot find it, then crush 3-5 tablets of plain aspirin instead), distilled water. Mix the powder with the water until it becomes of a creamy consistence, apply on clean dry skin (focus on T-zone and sides of the nose). Keep it on until completely dry. Take a small cotton pad, wet it lightly and begin scrubbing the areas covered with the mask, making small circles. Finally, rinse with plenty of water. It would be excellent to apply a calming mask or a hydrating mask first, followed by your regular moisturizer. Skin will be left completely smooth and even.
There are practically unlimited versions of this mask. You can add yoghurt for an astringent effect, aloe vera, honey. You can also make the mask using a basic moisturizer mixed with salicylic acid instead of water, as it will be less harsh on the skin and will be more easy to use. Another option is to mix salicylic acid / crushed aspirin into a mask: into a clay mask, a hydrating mask or a soothing mask. My personal favourite is aloe vera mask with a hint of salicylic acid - application is much better, skin is less irritated and dried compared to aspirin with water, the feeling left after this mask is absolutely unique so smooth and clean!
If you use powdered salicylic acid, it is advisable to limit the quantity to 1/4 tsp. for the whole face, too much will burn the skin. If using aspirin tablets, you will probably need somewhere between 3 and 10 tablets depending on the area where you apply it.
Do not apply it near to eye zone, as it would be extremely drying and irritating for the sensitive skin there.
Refrain yourself from over-using it. For very oily skin and for severe blemishes, every 3 days would be more than enough in order not to stress the skin and obtain maximum efficiency. Other skin types should use it once a week or twice a month (dry to very dry, sensitive skin).