Herbal Oyster Shells combine calcium-rich oyster shells with basil, rose, and oregano, giving laying hens the calcium they need plus the benefits of herbs. At a glance Type: Calcium supplement with herbs for chickens Ingredients: Oyster shells, basil leaf, rose petals and buds, and oregano leaf Provides: Calcium for laying hens Supports: Strong eggshells, consistent laying, and reduced calcium loss from bones Best for Laying hens needing extra calcium Supporting strong eggshells and consistent laying Adding herbs to a calcium supplement Backyard flock keepers Feeding Mix Herbal Oyster Shells with your flock's daily feed or offer separately. Provide fresh water at all times. About Dahlia Pets Dahlia Pets makes natural feed, treats, and herbal supplies for backyard chickens and small animals, focused on wholesome, sustainably sourced ingredients.