Q:   In your book, you say it's OK to squeeze blemishes? Isn't that bad advice?
A:   If you are a dermatologist or an aesthetician, you can do it. Because we all know the reason we do it: When you remove the swelling and the stuff that is causing the swelling inside the blemish, it goes down. We wouldn't do it if it didn't make it better. The key is to do it gently without damaging the skin. There is an edema in there — a cystic sac that has grown up around the contents — and that makes it feel like there is still something there; we are not patient. You can't push the whole thing out by continuing to squeeze. And then we don't disinfect afterward. You should use benzoperoxide or salicylic acid. There are many products on the market that contain those ingredients. Then we don't wash gently, and we scrub, which causes scabs. When you cause scabs, you're going to get scars.

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Q:   Next, we asked Paula to play a sort of word association with us. Read on to get the skinny on the following products:
A:   The Product: Moisturizers
The Truth: We believe they can get rid of wrinkles. The second thing we believe is that dry skin and wrinkles are associated. So if you don't use a moisturizer and you don't use it religiously, you are doing something to cause wrinkles. The wrinkling process is unrelated to the dry state of your skin. I can't think of a bigger myth. If wrinkles were caused by dry skin, then 10-year-old kids with dry skin would have wrinkles. The major cause of wrinkles is sun exposure (about 70 percent), and genetics can play a role as well. So we focus on moisturizers instead of sun protection. I think there are some good moisturizers, but it's a myth to think that they can get rid of wrinkles. Also, when it comes to moisturizers, we think expensive is better. And we don't look for sunscreens for use during the day. There is nothing about a $50-100 moisturizer that makes it better than a $20-$30 one. But if the one you're using doesn't contain a sunscreen, then you're doing nothing to prevent wrinkles. At night it's fine [to use a moisturizer], and there are many wonderful moisturizers with antioxidants and all kinds of anti-inflammatories; some really beautiful formulations. But wearing them during the day without a sunscreen is useless.

The Product: Exfoliates
The Truth: The bottom line is that for most skin types exfoliation is a good thing. No question about it. Dead skin cells make your skin feel rough, and if you are over the age of 20 (given the number of adults who have sun damage, clogged pores and dry skin), you would most likely benefit from exfoliation. There are two types of exfoliates : mechanical (or manual) exfoliation, and alphahydroxy acids and betahydroxy acids. The former you have to manually move around your face. They are pretty much '80s-style exfoliates. I think that form of exfoliation is dated, and I don't think there is anything in a scrub that can't be replaced by a washcloth. What does make a difference is a well-formulated betahydroxy or alphahydroxy product. There aren't many of them around because they are tricky to make and there is a risk of irritation. But much of the objective research out there suggests that exfoliation is good for most skin types.

The Product: Foundation
The Truth: We often wear the wrong color. Your foundation should match your skin exactly. What you have to do is keep looking until you find the right one. Take the time to look in the daylight, instead of trusting the lighting in the department store. Stay with the one that matches your skin color, because across the board — for all skin colors — foundations colors have improved dramatically.

The Product : Eye Color
The Truth: I think the biggest mistake I see is that women forget what they are dressing for, so one of the things on the market is these intense, strange-colored eye shadows or very shiny iridescent eye colors. The problem with wearing those is that if you are not wearing iridescent clothing for daytime, why are you wearing iridescent eye shadows, with glitter spilling all over the place? So what I often see women doing is forgetting what makeup is for. Makeup — by my definition and how I write — is about empowering women; making women more beautiful. And part of being beautiful is being appropriate. Going to the gym in 4-inch high heels doesn't make sense. By the same token, if what you are wearing to work is a business suit, in a conservative environment, why would you wear iridescent, bizarre colors that don't go with your outfit?

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