Natural Wormers... is not a case of treating when worms are present a case of many who get worms in their chook or any animal and then try and treat. Using natural methods is prevention so worms do not turn up to infest. I personally use a natural combination with success. Offer sulphur in their diet all the time, i use here in aus a product called extra sulphur, a mineral based supplement that they can eat and dust in which also prevents lice. I also use oils, combination of oregano, rosemary and coconut.
Welcome to BYC!
No harm in giving supplements that are safe for use in poultry.
-Kathy