If your cat has fleas, then you’ll need a product that kills fleas, not just repels them. The most effective natural flea killers are powders: calcium carbonate powder that can be used ON your pet AND around the house, and borate powder which is designed for use only on carpets, NOT on your pet or furniture.
Borate powders can last up to one year in carpeting and diatomaceous earth powders should be re-applied to carpeting every few months. I recommend using both: a borate powder for carpeting, and a diatomaceous earth powder for use on furniture, bedding and your cat.
Flea repellents will help with a flea infestation and will keep the fleas away once the infestation has been killed. For geographic areas where fleas are numerous, choosing to use a multi-prong approach is best: powders, flea comb, flea collar, and Brewer’s Yeast & Garlic Tablets to help keep fleas away from the inside out.
Here are my top picks for a natural flea remedy kit:
Manually remove any fleas you see: GirpSoft Flea Comb
Kill fleas from the inside out: Brewer’s Yeast & Garlic Tablets (Cats love the taste! I used them as reinforcers when training Tabasco.)
For use ON your pet AND around the house: Only Natural Pet All-In-One Flea Remedy Powder (Calcium Carbonate)
Repel fleas on your cat: Non-toxic Flea & Tick Collar for Cats by Only Natural Pet