You can buy glycerin from various sources depending on your needs and location:

• Online specialty shops like Hekserij offer glycerin made from vegetable oil with 99% concentration, available in various package sizes

• Braumarkt sells smaller quantities like 100 ml bottles suitable for culinary uses

• General advice states you can buy pure glycerin in most brick-and-mortar stores or online without a prescription

• Large retailers like Walmart sell USP-grade glycerin liquid for skin protection and other uses

• For food-grade vegetable glycerin, Amazon and craft stores like Michaels carry reputable brands such as LorAnn Food Grade Vegetable Glycerin. Some supermarkets may also stock it, though availability varies by location

• Bulk Apothecary is a major US supplier offering pure kosher USP vegetable glycerin in bulk and smaller sizes, suitable for soap making, food, and personal care products

• UK buyers can find pure vegetable glycerin from stores like The Soapery

• Wholesale Supplies Plus is another source for natural glycerin products

In summary, glycerin is widely available online and in physical stores including pharmacies, craft stores, supermarkets, and specialty suppliers. Choose the source based on the grade (food, cosmetic, or industrial) and quantity you need.