I've used this most of my life, more than other brands. When the liquid ones were invented I used them. I've tried almost every brand and type of concealer. But the liquid ones are all implicated in giving me eyelid rashes for the past year. Supposedly you can develop an allergy even after years of exposure to the ingredients. I just don't know which ingredients are destroying my skin. So, reading all ingredient labels in the store, I decided this one had less of the disgusting chemicals. It still has some questionable ingredients but not as many. For example it doesn't have silica or artificial silicones as all the others seem to have.
Of course this is an old school product. It's heavy and it takes effort to blend it in nicely. But if I can have a concealer that is harmless and doesn't burn my skin, I'm willing to take the time to blend it, and I won't quibble about it. I chose the Illuminator rather than the Fair because I remembered liking the effect years ago. It is very pale but I solve that by using very little and powdering all over to blend it in.
Update Apr 28/16: I am grateful for this product. When I carelessly used a liquid concealer and got the angry burning rash again which takes weeks to heal, I use the Cover Girl stick in Fair and it covers the redness without irritating AT ALL. It deserves top marks. It covers completely and is innocent of any harm to my skin. Why didn't I throw out those caustic liquid concealers? Because....I kept hoping they would work again. I must throw them out.
I will just use this little stick. It works and it doesn't hurt my skin. I now prefer the Fair shade which gives the most opaque coverage, while still looking natural.
Update May 27/16: Lowering my rating to 3 because this, too, irritated my skin after a few days of using it. I can't win, and have to do a full makeup without any concealer or foundation. I just use Vaseline or Nivea, wipe most of it off so it won't be greasy, and then apply a mild powder that is unscented like PF or CG. I look ghastly, but whatever. Once the skin heals I of course will try this again. I always try again.
Update Mar 13_18: I should mention that Illuminator is absolutely the best for covering dark circles. However, it has to be blended several times because it photographs white. It is called illuminator and that is just what it does. They are not kidding. The regular one in Fair does not do the job. I love this and will always use it. My rating is now 4 out of 5. This is all I dare use now.
This concealer is not and never was the source of my eye area rashes. It is the silicones (especially cyclopentasiloxane) in the liquid ones and foundations that did the damage. I can't use anything over a rash that isn't healed so I still don't put anything on those areas, but I can manage to wear minimal makeup and look nice again. If I put on my makeup without concealer, it's simply not good. With mascara and liner I must use a concealer and this is the one.
Update Aug. 12/19: This is all I can use on my face. I blend it in to cover dark circles and then I use powder. No foundation works for me. They all have way more chemicals than this simple cover stick which does not hurt my skin and does not look fake. I hope they never discontinue this.