First of all... not to be mean... just to help you use the correct terminology..
You pluck a chicken...
You "tweeze" eyebrows :)
Without being argumentative with the whole group here... Waxing and Tweezing DO make the hair growing back thinner. Hair follicles have different stages of growth , and when a follicle is in a dormant state it may not produce a hair for months,some follicles produce a hair more quickly than others. So when you are using these methods consistently the new growth will be less.
If you shave , you are never removing the hair from the follicle so you will have the thicker strand of hair coming through and new growth.
NEVER SHAVE... think of it like this... If you shave all you are doing is cutting the hair off where the hair starts to come through the skin.. and yes it will seem to be thicker because the middle of a hair strand is thicker than the first new growth.
Tweezing removes the hair and since hair doesn't all grow back at the same rate, everytime you tweeze it appears that you have "less" hair growing back.. and so the new growth is not as thick as when you started.
I personally prefer waxing, it does the same thing as tweezing but gets even the fine hairs I can't see (I'm blonde so it makes a big difference)
Waxing is really easy and although not pleasant , you do adapt and it gets less painful each time..
If you choose to wax .. here are some tips..
Clean the area well with an antiseptic cleanser
You can get GiGi wax in a small microwavable container(Sally's carries it), it only needs to be heated about 2 minutes to do brow or lip waxing since you don't need large quantities.
You can cut muslin into the size strips you need , but Sally's also has muslin strips available, they also have the very small wooden sticks for applying the wax ( smaller than popsicle sticks) I reuse mine so the package lasts forever.
The cost of the wax, strips and sticks will pay for itself in less than 3 professional visits.
To begin work in small areas, try between the brows first (not an eyelid area)
dip just the tip of the stick in the wax getting only about a pea size amount on the stick, twirl the stick a little to avoid fine strands of wax getting all over you and if wax is very liquified blow on it a little, you only need it warm enough to spread easily, then apply it with the direction of the hair growth. It should not burn (feel hot) when applying it to the skin. Then take your muslin strip and lay it on the wax, leave enough material free of the wax for you to grasp it with your fingers, then "ZIP" it off ( think of the action your hand makes when you zip up your jeans) Don't yank it upwards , that pulls the skin and is the incorrect technique that makes it much more painful. Zip it off in the opposite direction that you applied the wax. For example on the side of the face hair usually grows down, apply the wax in a downward stroke and zip it off in an upward stroke.
Pay attention here this is an important note to remember: As soon as you have zipped it off, apply pressure to the area immediately, I use my bare fingers or a muslin strip to do this, hold it there a few seconds, it prevents a lot of the pain, redness and swelling. If you have sensitive skin like me, plan on it being midly red for a few hours, if I have to go somewhere I'll even use cold compresses.
(Ladies for upper lips, three areas at least, right side, left side and center below nose the hair grows in different directions so one sweep is not as effective) . I don't reuse the strip unless I am doing a leg wax, alot easier to clean up if you use fresh strips, there will still be a slight waxy residue so I use a clean strip and using the same technique go over the area again to pick up residual wax, baby oil or a lotion with mineral oil will remove the rest.
After that just wash your face and moisturize as usual...
Hope this wasn't more than you ever wanted to know about waxing... but it is so easy, so effective and so much more affordable to do yourself. You can wax facial hair, legs, bikini areas, men use it for backs and chests.. etc...