Part A is used before and up to the last day of mating ONLY! Bitch A Vit is a formula designed to support a bitch from mating, right through to Whelping and is a 2-part product. Part A is for use both before and during the mating season to support the bitch's reproductive system, thus increasing the litter size and quality. Can be used before the bitch is in season up to the last day on mating only. Part B contains all natural ingredients to help support the growth and wellbeing of unborn puppies whilst helping to minimise any abnormalities in their development. This product will also increase milk production naturally. Can be used from the last day of mating up until you wean the puppies off the bitch. Ingredients Part A- Beetroot, brewers yeast, withania, spinach, shatavari, tribulus; Part B - Beetroot, bladderwrack, brewers yeast, spirulina, sunflower meal, spinach, ascorbic acid.