Thank you for visiting. I see this often used in overseas barber shaving videos, such as HairCut Harry. Product Description: BLOC OSMA 75g Made in France If used as an aftershave, It should last for 2-3 years even if used daily. To protect your skin from razor burn: 1. Apply pre-shave cream 2. Use high-quality shaving soap 3. Use a shaving brush that can create sufficient lather and lift the beard 4. Soothe the skin with alum block and condition and moisturize the skin with lotion, emulsion, and serum I believe that all four of these elements are important. Please note that there may be scratches, dents, and damage to the box. Thank you. ==Official HP Product Description== Our iconic alum stone is known worldwide. Recognized by shaving specialists and the general public for its effectiveness, longevity, and ease of use. Wet the alum stone with water and apply it to the skin. It soothes razor burn and irritation and prevents the growth of bacteria that cause small blemishes. It has been imitated many times over the years, but never matched. It is a unique artisanal product handcrafted in France. #Mühle #Merkur #DoubleEdge #Shaving #Razor #Gillette #R89 #334C #StraightRazor #WetShaving #ClassicShaving #derby #Derby #shaving #Schick #feather #Feather #HighStainless #Gillette #gillette #edwinjagger #personna #Parker #parker #DoubleEdgeRazor #Razor #EdwinJagger #edwinjagger #Shaver #ClassicRazor #Higesori (Beard Shaving) #Hizori (Beard Shaving) #polsilver #Mudage Processing (Hair Removal) #Shevet #Shevet #AlumStone #Myoban (Alum) #Crystal #Recrystallization #FreeResearch #Science #Experiment #Craft #Chemistry #ElementarySchool #JuniorHighSchool #ElementarySchoolStudents #TeachingMaterials #Teacher