Pore-clogging ingredients and ingredient-checking algorithms have become one of the hottest topics in the skincare world, especially among those with acne-prone skin searching for acne-safe skincare products. For years, I lived and breathed by them. If an ingredient checker flagged a product, it was immediately off my list.

But as I've gained more experience, reviewed more research, and worked with thousands of acne clients as an acne specialist, my perspective has evolved.

And that's okay.

We should normalize learning new information and changing our minds when the evidence leads us in a different direction. We don't need to cling to outdated beliefs simply because we've held them for a long time.

Now, don't get me wrong—I still believe pore-clogging ingredients are incredibly important when it comes to clearing acne, maintaining clear skin, and achieving long-term success with acne treatment. However, there are a few things that ingredient checkers often get wrong.

The Problem with Comedogenic Testing

Most comedogenicity testing is performed using a single ingredient at 100% concentration.

For example, coconut oil tested at 100% concentration has been shown to be highly comedogenic. But when you see coconut oil listed in a skincare product, it is extremely unlikely that the product contains anywhere near 100% coconut oil. In many cases, it may represent only a small percentage of the overall formula.

When you copy and paste an ingredient list into a pore-clogging ingredient checker, the algorithm often flags coconut oil based on studies that tested it at full strength. It doesn't take into account the actual concentration used in the formula or how that ingredient behaves when combined with others.

This is where formulation matters.

The way an ingredient is sourced, processed, and incorporated into a formula can significantly impact how it performs on the skin. Skincare is much more complex than labeling an ingredient as simply "good" or "bad."

The Shea Butter Controversy

A recent example that sparked a lot of online debate was the launch of Reale Actives, the acne-focused skincare line created by Alix Earle.

Shortly after launch, people noticed that the moisturizer contained shea butter. Social media immediately erupted with criticism.

"How can an acne-friendly moisturizer contain shea butter?"

The concern stems from the fact that shea butter has been identified as comedogenic when tested at high concentrations. However, context matters.

In the ingredient list, shea butter appears around the tenth ingredient. Since ingredient lists are arranged in descending order by concentration, we can reasonably assume the amount of shea butter is relatively low compared to the ingredients listed before it.

Am I recommending this moisturizer? No. I haven't personally evaluated the product, and I only recommend products that I have thoroughly researched and feel confident speaking about.

However, this situation highlights an important point: many consumers focus solely on individual ingredients without considering the complete formula.

The company reportedly tested the finished product and found it to be non-comedogenic. Whether or not you choose to use the product, that's a much more meaningful data point than simply seeing the words "shea butter" on an ingredient list.

Why Formulation Matters More Than Individual Ingredients

Many skincare companies do not conduct clinical testing on their finished products because it is expensive and time-consuming. Instead, they rely on studies performed on individual ingredients.

The challenge is that ingredients do not exist in isolation.

We know that some ingredients can behave very differently when combined with others. A classic example is Ceteareth-20 and Cetyl Alcohol. Individually, these ingredients may not pose an issue for acne-prone skin. However, when combined, they can become problematic for some individuals.

This is why evaluating an entire formula is so important.

The finished product—not just the ingredient list—is what ultimately comes into contact with your skin. When choosing non-comedogenic skincare, it's important to look beyond a single ingredient and evaluate the complete formulation.

Should You Still Use a Pore-Clogging Ingredient Checker?

Absolutely.

I still encourage acne clients to run their products through a pore-clogging ingredient checker. When you're trying to clear acne, you're often battling multiple contributing factors at once. Eliminating potential triggers can be a helpful part of the process.

However, ingredient checkers should be viewed as a tool—not the final answer.

If a product gets flagged, don't automatically assume it's causing your breakouts. Likewise, just because a product passes an ingredient checker doesn't guarantee it will work for your skin.

Every person's acne journey is different.

The Bottom Line

Pore-clogging ingredient checkers can be incredibly helpful, but they don't tell the whole story. They often fail to account for ingredient concentration, formulation chemistry, sourcing, and clinical testing of the finished product.

When it comes to acne treatment, context matters.

If you're struggling with persistent breakouts, consider working with an experienced acne specialist who can evaluate your skincare routine, lifestyle factors, hormones, diet, and overall skin health. A professional can help determine what's truly contributing to your acne rather than relying solely on an algorithm.

At the end of the day, skincare is both a science and an art—and sometimes the full picture is more important than a single ingredient on a label.

If you're looking for personalized acne treatment and guidance on choosing the right acne-safe skincare products, our team at North County Skin Solutions specializes in helping clients achieve lasting, clear skin through customized treatment plans and expert support.