What I found out in my research is that for the MAC 217 the Hakuhodo J5523 is a dupe. For the MAC 239 the Hakuhodo J004G is a dupe. Do you agree?
Hello Danish! (Welcome to the start of a new addiction)
Aha. I think you're spot on in your own personal research! But I'll try to add a bit more input if you don't mind.
In terms of hair quality, you are right. It is recommended that squirrel hair would be more fitting for sensitive skin. Below are things you should consider for each type. It's worth having both types of hairs in your brush arsenal because they are good at different things
Squirrel hair:
1.)INCREDIBLY SOFT. Feels like silk or air on the skin. (This can sometimes translate to floppy if the hair is TOO soft)
2.) More expensive than comparable goat brushes
3.) Very delicate hair quality (treat these brushes WITH care)
4.) It can't be treated like a workhorse brush due to its delicate hairs. Usually it's good to have a few in rotation to lessen the burden.
5.) ONLY meant for powder products since the hair is delicate.
* Gray or blue squirrel is the most popular and most available. Pine squirrel tends to be scratchy (hit or miss). Canadian squirrel is the workhorse of all the types of squirrel hair, however, it's harder to find and tends to be expensive as its usual found in sets.
Goat hair:
1.) can handle different consistencies of product (cream, powder, liquid)
2.) Easier to find densely bundled brushes with good resistance, spring, bounce, etc
3.)Goat hair brushes for eyes tend to easily be considered workhorses. You can use multiple products and don't have to be so delicate with them
4.)Cheaper than squirrel hair
5.)Quality varies among japanese brands depending on hair grade. Being goat hair doesn't mean its rough. Goat hair can be really soft. It's about quality.
* For future purposes these are the types of goat hair from least soft to most soft: ototsuho, sokoho, saikoho, and saibiko. You really want to aim for sokoho and saikoho. They are really soft and most affordable. Ototshuho can be scratchy and saibikoho is usually 3 times the price since the hairs are so rare and delicate... this is delegated more as a collector item.
MAC 239 dupes: J004G - softer than the mac but has slightly less density
Wayne Goss 18- I know you asked for just these brands but his brushes manufacture in japan. His quality is outstanding as well.
MAC 217 dupes: J5523 - basically an exact dupe
Koyudo bp033 - exact dupe but the gray squirrel hair version
*notable mentions: Hakuhodo J142 and Chikuhodo T7
MAC 242 dupe:
I use the koyudo bp034. The Koyudo bp034 is made out of kolinsky hair which is the most durable/flexible beating goat and squirrel hands down when using for cream products for the eyes. Someone can probably add to this since I don't own the 242 but merely speculate.
Nars Yachiyo:
Hakuhodo Yachiyo (L) - has the same concept but the hairs haven't been dyed.
I prefer other brushes to yachiyos in general though
I hope this helps!
One last thing: I would definitely order koyudo and chikuhodo from : http://www.cdjapan.co.jp They take out japanese taxes and give you the honest retail price. However if you want your name engraved on either brands' brushes (which you can!) Then I would order from: www.visageusa.com for chikuhodo and http://www.koyudo.co.jp/ for koyudo. Koyudo's website is in japanese however. Wayne goss can be found on beautylish.com and hakuhodo can be found on http://www.hakuhodousa.com.
I think hakuhodo is cheaper in japan but if you use cdjapan for koyudo and chikuhodo, you're going to get the best price. Please note that I say this without consideration for shipping and VAT charges. But shipping from these sites is not horrendous either.