So what was your secret with Rusk? I asked for samples, specific ones and they said they do not send samples. That was the extent of the email. I was a little surprised, I used to sell salon products and every brand had foil packs available. Maybe they don't do that so much anymore.
Sometimes brands have to be convinced you are genuinely interested in their products and not a sample hoarder. (I'll admit to a little bit of sample hoarding myself, but for the most part I buy what I like.)
Instead of asking for specific samples, give your skin type, or your hair type, or if it's a cosmetic company give a skin-tone, eye color kind of thing and say you are on the market for a new ___ for your skin type. Maybe a new cleanser and exfoliator, or a new eyeliner and lipstick, that kind of thing. It tends to work better. Also don't be discouraged with a "No" it happens to everyone, also if everyone is emailing the same company at the same time it'll be harder to receive samples. That being said, you can re-email every company that says "no" or even "Yes" about every 3-4 months or so! There are very, very many lists here to look back at on this thread. You can skim through and if you find a really long message most likely it's a large list of companies you can contact.
Doing this kind of thing takes practice, time, and effort. As a makeup artist I know samples sell product, gets it off the shelves, most companies (Living Proof, for example) are pretty decent with samples unless they are 1. A snobbish type brand like Dior or Chanel and want you to be in person asking for samples at a counter because they have a certain image to keep, or 2. A brand that's on the indie/poorer side that can't afford to give out samples. Luckily for those who wish to find decent products and don't need a brand-name label, there are plenty of companies who let us try before we make a purchase...
I feel like this thread should be more popular on Makeup Talk, after all who doesn't use samples to find new products? Everyone likes samples!