How could shaving cause hair to grow in thicker? The razor doesn't go below the surfact to affect the follicle, so it can't have any such effect. However, because the hair is cut off straight and doesn't grow back with the fine point that unshaven hair does, it might look thicker. If someone's hair growth increased, there is another reason besides shaving.

That said, if shaving feels too "masculine," then I would attempt a drugstore wax. There is also a medicine Vaniqa that reduces hair growth as long as the user continues using it. However, it's a prescription product, rather expensive, and not covered by most insurance plans.