Board-Certified Dermatologist · NYC

Evidence-based skincare, without the gatekeeping.

I break down what actually works, what's overhyped, and what your skin really needs. Honest dermatology, independent recommendations, real product reviews.

Dr. Ali Dempsey, board-certified dermatologist

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Dr. Ali, in the press.

Thoughtful skincare advice. A closer look at the science. My perspective, beyond the blog.

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Skincare

The best night creams for glowing skin by morning, according to dermatologists

My night cream recommendations and advice on choosing a moisturizer for what your skin needs.

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Science & wellness

Fact vs. fiction: Doctors share whether peptides are safe and effective

I explain what peptides are and why the marketing around injectable peptides has outpaced the research.

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Explore the skincare I recommend, with my guides to help you decide what belongs in your routine.

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The Dermatologist's Tretinoin Starter Guide

The exact ramp-up schedule, product picks, and troubleshooting tips I share with patients starting tretinoin. Learn how to manage dryness and build a routine you can tolerate.

  • Week-by-week frequency schedule from beginner to nightly
  • Five common mistakes that can worsen dryness and peeling
  • Which moisturizers, cleansers, and SPF to pair
  • What to expect at month 1, 3, and 6
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A Dermatologist's Guide
The Tretinoin Starter Guide
By Dr. Ali · 2026 Edition

New Here?

Start with these three guides

If you're new to skincare or just looking for where to start, these are the three pillar guides I'd send anyone first.

01

Beginner Retinol Guide

The complete dermatologist's guide to starting retinol, with 7 product picks and a strength-by-strength roadmap.

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02

Tretinoin Moisturizer Hub

The exact moisturizers I recommend to patients on tretinoin, by skin type and stage of acclimation.

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03

Best Drugstore Picks 2026

My 12 best drugstore moisturizers of the year, with picks for every skin type and all under $35.

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Most Popular

What readers are searching for

The posts bringing people back. Dermatologist-reviewed guides on the products and routines that make a difference.

Tretinoin

Best Moisturizers to Use With Tretinoin

The moisturizers I actually recommend to patients based on skin type, sensitivity, and tolerability.

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Retinol

Best Retinol for Beginners (2026)

The 7 retinols I'd actually recommend to a true beginner, across every budget and skin type.

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Drugstore

Best Drugstore Moisturizers 2026

12 dermatologist-tested drugstore moisturizers with picks for every skin type, all under $35.

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Body Care

AmLactin Lotion: 7 Uses a Derm Recommends

Everything AmLactin is good for: KP, crepey skin, rough texture, and more, plus how to use it.

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Tretinoin

Best Moisturizer for Tretinoin Peeling

The products I recommend to patients in the peeling phase, with a step-by-step recovery routine.

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Comparison

Vanicream vs CeraVe for Sensitive Skin

An honest head-to-head of two of the most popular sensitive skin brands. Which is actually better?

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Derm Next Door podcast with Ali and Reem, board-certified dermatologists in New York City

The Podcast

Derm Next Door

With Ali & Reem

Listen to two New York City board-certified dermatologists talk about skincare, beauty trends, and everything in between. Real conversations that make skin science accessible, evidence-based, and actually fun to listen to.

New episodes drop regularly. Tune in for product breakdowns, ingredient deep-dives, and the kind of unfiltered industry talk you usually only get from your derm best friend.