1) Her skin issue: Dryness. "If u have really sensitive skin, and I'm just getting back into using a retinoid because if it  is the first time u are using 10 years I haven't been pregnant, trying to get pregnant or nursing," says Hirsch. (Experts recommend avoiding vitamin A derivatives like retinoid and tretinoins during pregnancy and nursing.) "I'm only using it every third night right now, and I'm peeling like crazy." That means her medicine cabinet is filled with ultra-hydrating products to help counteract that dryness and irritation. "You don't need a ton of stuff, but I probably play around with different products more than other people do." 

Hirsch cleanses with a basic cleanser, "usually something you can find at the drugstore" she says. The three in her rotation right now: Neutrogena Fresh Foaming Cleanser, First Aid Beauty Face Cleanser and Dove Beauty Bar Sensitive Skin. 

Every third night, she applies a prescription retinoid called Refissa ("the gentlest retinoid you can get," she says) to address aging-skin concerns like fine lines and pigmentation. But every night, she puts on a double dose of skin soothers: first, Skinceuticals Hydrating B5 Gel, then First Aid Beauty Ultra Repair Cream. "When I finish up the Repair Cream, I'm going to swap it for Fresh Elixir Ancien," she says, a hydrating face oil that also minimizes wrinkles. 

2)Her skin issue: Oil, which leaves her with blemishes. "I use acne products twice a day," Lamb says. "On the upside, people with oily skin also tend to look younger." (Gotta love that positive attitude.) That being said, she's starting to notice the signs of time on her face, so anti-aging products are now a priority.

 After applying a prescription acne medication, she uses either La Roche-Posay Effaclar Mat Oil-Free Mattifying Moisturizer ("when I'm feeling really oily") or Dermalogica Intensive Moisture Balance. If her skin seems dry in the a.m., she'll switch to a heavier moisturizer, like SkinCeuticals Emollience. Here's what's not in her daily morning routine: sunscreen. (Try to contain your horror). "The only time I'm outside during the day is early in the morning when I walk to work, so I get very minimal sun exposure," she says. Plus, "I'm a darker-skinned black woman, so I don't feel as wedded to the sunscreen recommendations that I make to patients who don't have my complexion."

She washes with the same cleanser, but this time, she uses a Clarisonic Mia brush to really get the grime of the day out of her skin.