Retinol

Retinol, Explained

A deeper look at one of the most powerful ingredients in skincare

Hi everyone,

This month I wanted to talk about an ingredient you’ve definitely heard me mention in the treatment room: retinol. It’s one of the most powerful tools we have in skincare, but it’s also one of the most misunderstood, so I thought it was worth properly breaking it down.

This one is a little longer than usual, but if retinol has ever confused you, intimidated you, or just made you curious, it’s worth the few extra minutes. Think of it as a deeper dive into one of the most effective ingredients we have for long-term skin change.

Why Retinol Matters

Retinol has earned its reputation for a reason. It’s one of the most studied and clinically proven ingredients for improving skin over time. While some ingredients mainly focus on hydration or giving the skin a temporary glow, retinol works deeper within the skin to influence how it functions.

It encourages healthy cellular turnover and supports collagen production, which over time leads to smoother texture, clearer pores, and stronger, more resilient skin.

In simple terms, it helps skin behave more like younger, healthier skin again.

Understanding Retinoids

Retinol belongs to a larger family of ingredients called retinoids, which are all derived from vitamin A. These compounds interact with receptors inside skin cells and help guide how those cells grow, mature, and renew themselves.

That’s why retinol can do so many things at once. It can help reduce breakouts, refine texture, soften fine lines, and gradually improve overall tone.

You may see retinoids listed under a few different names on ingredient labels. The most common forms used in professional and over-the-counter skincare include retinol, retinaldehyde (often labeled retinal), retinyl palmitate, and retinyl acetate. Prescription versions include tretinoin, adapalene, and tazarotene, which are already closer to the biologically active form the skin ultimately uses.

Retinol tends to be the most widely used because it offers meaningful results while still being tolerable for most skin types when introduced properly.

The Biggest Retinol Misconception

One of the biggest misconceptions about retinol is that stronger automatically means better.

In reality, what matters most is consistency over time, not jumping straight to the highest percentage you can find. Most over-the-counter formulas fall somewhere between 0.25% and 1%. If someone is new to retinol, starting around 0.25% or 0.3% is usually ideal.

Skin needs time to adjust to increased cellular turnover, so introducing it slowly helps prevent irritation while the skin builds tolerance.

Amount matters just as much as strength. A pea-sized amount for the entire face is plenty. Using more won’t make it work faster. It will simply irritate your skin, which defeats the whole point.

Frequency should also increase gradually. Starting with two or three nights per week is usually best, then increasing as the skin adapts. Some people eventually tolerate nightly use, while others do best every other night. Both approaches are completely fine. The goal is steady improvement, not pushing the skin past what it can handle.

Why Retinol Is a Nighttime Ingredient

Retinol should always be used at night.

Retinoids are sensitive to light and air, and UV exposure can reduce their effectiveness. At the same time, because retinol increases cellular turnover, the fresh skin cells that come to the surface are more vulnerable to sun exposure.

Using it at night allows it to work alongside the skin’s natural repair cycle.

Then the next morning, SPF is non-negotiable.

I always think of it this way: retinol works overnight to improve the skin, while sunscreen (and vitamin C in the morning, which you’ve definitely heard me talk about before) protects those improvements during the day.

What Retinol Can Improve

When used consistently, retinol can address several concerns at once. It helps refine uneven texture, soften fine lines, regulate oil production, reduce breakouts, and gradually improve discoloration from sun exposure or previous acne.

Over time, increased collagen support can also help skin appear firmer and more even overall.

The key thing to remember is that retinol works gradually. Skin renews itself in cycles, so improvements happen little by little as healthier cells come to the surface. Most people begin noticing smoother texture and clearer pores within several weeks, while deeper changes in tone and firmness continue building over the following months.

When Retinol Should Be Paused

There are a few situations where retinol should be avoided or temporarily paused.

Retinoids are generally not recommended during pregnancy or while breastfeeding. If the skin barrier is extremely compromised or reactive, it’s usually best to focus on repairing the skin first before introducing it. And when someone is undergoing stronger treatments like chemical peels or certain laser procedures, retinol may need to be paused temporarily while the skin recovers.

One thing I always remind people of: if you try retinol and your skin doesn’t love it, that’s not failure. It’s feedback.

Skin is individual, and what works beautifully for one person may not be the right fit for someone else. There are plenty of other ways to support renewal at night, whether that’s gentler vitamin A derivatives, exfoliating acids like glycolic acid, peptides, growth factors, or barrier-supporting ingredients that help skin strengthen and repair itself.

Retinol is an incredible tool, but it’s not the only path to healthy, high-functioning skin.

Retinol Works Best as Part of a System

When it’s used correctly, retinol works beautifully alongside supportive ingredients. Hydrating ingredients like hyaluronic acid, barrier-supporting ingredients like ceramides and niacinamide, and antioxidants during the day all help keep the skin balanced while retinol does its work.

This is why I often talk about skincare as a system, not just one hero product.

Antioxidants defend the skin from daily stress.
Barrier-supporting ingredients maintain stability.
Retinol encourages renewal and long-term improvement.

When those elements work together, the skin can perform the way it’s meant to.

And that’s where real, lasting change happens.

That’s the Method.

xo,
Lexie