Silver Lining 10 Foundation Supplements for Dogs by Silver Lining Herbs is recommended for all dogs to support normal health and vitality. #10 Foundation is the base upon which all Silver Lining canine formulas are built. In other words, always use #10 Foundation, and if your dog needs help with specific issues, add the other formulas as required. The exception to this rule is #20 Keep Cool which will be most effective when used alone. Available at Barking Dog Bakery and Feed.