BSP stands for broad spectrum. Like all of our other vitamins these are high potency vitamin drops so that only a small amount is needed. They are ideal for medicating water for small pets from rabbits and guinea pigs down to degu, hamsters and gerbils - which often won´t accept vitamins any other way. Contents per litre Nutritional additives Vitamins A (retinyl acetate) - 6,000,000 IU, C-10,000mg, E-8,000IU D3-1,000,000IU, B1-2000mg, B2 - 4000mg, B6 -1,000mg, biotin 25mg, folic acid 400mg, nicotinic acid 20,000mg and pantothenic acid 12,500mg Manufactured in the UK. DIRECTIONS Store in a cool dry place BOX CONTAINS 1 x 50ml BSP Liquid multivitamins See more1 drop per 100ml of drinking water. Easy to Use: Can be given via drinking water. Contains Vitamins A, B1, B6, B12, C, D3 and E. High Potency liquid supplement for Birds, Reptiles, Wildlife & Rabbits. Broad Spectrum Liquid Vitamin Supplement.