Tretinoin and Azelaic Acid Changed My Skin. Here’s Why I Stopped Using Everything Else

I’ve tried what feels like everything.

The viral serums. The expensive exfoliants. The 10-step routines. The products promising to clear a breakout overnight and somehow erase the dark spot it leaves behind by morning.

But after years of experimenting with skincare, the biggest difference in my skin came when my routine actually got simpler. The two ingredients I swear by now? Tretinoin and azelaic acid.

It turns out there’s science behind why the combination works so well. Dermatologists use both ingredients to address several of the concerns that send us searching for yet another skincare product in the first place, including acne, post-breakout discoloration and uneven texture.

And no, you don't need another six serums on top of them.

Why Tretinoin Is Worth the Hype

Tretinoin isn't exactly a new beauty discovery. The prescription retinoid has been used in dermatology for decades, but in the age of elaborate skincare routines, its simplicity almost feels revolutionary.

Tretinoin is a vitamin A derivative that increases skin-cell turnover, helping keep pores clear and improving acne. With continued use, it can also help with uneven texture, discoloration and signs of photoaging by supporting collagen production.

Basically, it does a lot of the things we’ve been buying separate products to accomplish.

There is an adjustment period, though. Tretinoin can cause dryness, redness, flaking and irritation, particularly when you first introduce it. This is not an ingredient to start using every night simply because TikTok told you to.

Azelaic Acid Is the Underrated Half of the Routine

If tretinoin is the ingredient everyone knows, azelaic acid is its criminally underrated counterpart.

Azelaic acid can help treat acne and inflammation while also addressing hyperpigmentation. It interferes with tyrosinase, an enzyme involved in melanin production, which is part of what makes it useful for those stubborn post-acne marks that seem to hang around long after the actual breakout disappears.

It also has anti-inflammatory and antimicrobial properties, making it particularly useful when your concerns aren't limited to just one thing.

Breakouts? Check.

The red or brown mark the breakout left behind? Check.

Uneven-looking skin? Check.

This is the multitasking ingredient I wish I had known about years ago.

Why Tretinoin + Azelaic Acid Work So Well Together

The magic isn't that mixing the two creates some entirely new super-ingredient. It's that they approach many of the same skin concerns in different, complementary ways.

Tretinoin increases cellular turnover and helps prevent clogged pores, while azelaic acid targets inflammation, acne and excess pigmentation through different mechanisms.

For someone dealing with the extremely annoying cycle of breakout → dark spot → another breakout before the first mark has faded, that's a pretty compelling combination.

Dermatologists interviewed by Allure have discussed using the two ingredients within the same routine, although exactly how they're used depends on your skin and the formulations involved.

And that's important because this is one skincare trend where more is definitely not better.

My Routine Is Almost Boring Now

That's kind of the point.

In the morning, azelaic acid can be incorporated alongside a gentle cleanser, moisturizer and, most importantly, broad-spectrum sunscreen.

Tretinoin is generally used at night, as directed by the healthcare professional who prescribed it.

Depending on your skin's tolerance, a dermatologist may recommend separating the ingredients between morning and evening, alternating them, or eventually incorporating both into an evening routine.

If your skin is sensitive, slowly introducing active ingredients is especially important.

You also don't need to compensate by attacking your face with every other acid in your medicine cabinet. Adding harsh scrubs, strong exfoliants and several other actives can simply create more irritation and compromise your skin barrier.

The routine that finally worked for me became surprisingly straightforward:

Gentle cleanser. Azelaic acid. Tretinoin. Moisturizer. SPF.

Not all at the same time, and not necessarily every day. Just consistently and according to what my skin can tolerate.

But Don't Expect an Overnight Transformation

This may be the hardest part for anyone accustomed to before-and-after TikToks.

You have to wait.

Real changes from tretinoin and azelaic acid happen over weeks and months, not three days.

Depending on the concern being treated, more noticeable improvements can take several weeks, with changes in discoloration and texture potentially continuing over several months.

There can also be an awkward adjustment period involving dryness, peeling or irritation. That's why introducing products gradually and paying attention to your skin is more important than following someone else's exact routine.

Maybe the Real Skincare Hack Is Using Less

Beauty has become obsessed with what's next.

There's always another serum to buy, another acid to layer and another ingredient we're suddenly told is missing from our routines.

I'm finally doing the opposite.

Tretinoin and azelaic acid haven't made me stop loving skincare, but they have made me question how much of it I actually need. Instead of constantly chasing the next viral bottle, I've found two ingredients that address the things I actually care about: breakouts, the marks they leave behind and uneven texture.

So, no, I'm not adding another seven-step routine to my cart.

I'll stick with the boring stuff.

This article reflects the contributor's personal experience and is for informational purposes only. It is not medical advice. Tretinoin is a prescription medication in the U.S. and may not be appropriate for everyone. Consult a dermatologist or qualified healthcare professional before beginning or combining active skincare treatments.