One billion people worldwide have a vision impairment that could have been prevented or treated (WHO blindness and vision impairment fact sheet). That's a staggering number, and while not all of it is from eye makeup, it's a stark reminder that your eyes are precious. When you're shopping for a kohl pencil, you're not just picking a color—you're making a health decision. Here's how to do it right.
Who This Is For
This is for anyone who loves the smoky, dramatic look that only kohl can deliver. But it's especially for those who are tempted to buy traditional kohl from an ethnic store or online, or who have a family member who swears by the stuff from the old country. If you're a makeup minimalist who only uses a pencil liner occasionally, you can still benefit from knowing what to avoid. I'm going to walk you through the process of selecting a kohl pencil that's safe, effective, and won't put lead on your lash line.
Step 1: Know the Historical Context
Kohl has been used since Ancient Egypt, around 3100 BC (Cosmetics history). It's not just makeup; it's cultural heritage. In fact, in 2025, UNESCO recognized Arabic kohl as intangible cultural heritage (Britannica kohl). But here's the thing: ancient kohl was often made from galena, which is lead sulfide. And lead is toxic. Modern studies have found that some traditional kohl products still contain lead, and users have shown elevated blood lead levels (Britannica kohl). So, you must check the label. If it says "traditional kohl" or "surma" or "kajal," be wary. There are safe versions, but you have to verify.
Step 2: Understand the Types of Eyeliner
Not all eyeliners are created equal. The five main types are pencil, kohl, gel, cream, and liquid (Cosmetics history). Kohl is specifically known for smoky looks, while liquid is best for sharp cat-eyes. But within kohl pencils, there's a range. Some are "kohl" in name only—they're just soft pencils. Others are traditional kohl. For this review, I'm focusing on kohl pencils you can buy at a drugstore or department store, like those from Dior, Annabelle, or Sephora (Britannica kohl). These are typically made with modern, safe ingredients, but you still need to check.
Step 3: Read the Label for Pigments
Modern eyeliners use pigments like iron oxide (black), ultramarine (blue), and chromium oxide (green) (Cosmetics history). These are safe. But if the label lists lead carbonate or antimony, which are found in some traditional kohls (Britannica kohl), put it back. Also, be aware that labels like "natural" or "hypoallergenic" have no official meaning—companies can use them however they want (MedlinePlus Cosmetics). So don't trust those buzzwords. Look for the ingredient list. You want to see names like iron oxide, not lead sulfide.
Step 4: Check for Microplastics
Microplastics are tiny pieces of plastic, less than 5 mm, that are persistent and hard to remove from the environment (EU Environment microplastics). They're often added to cosmetics for texture or shimmer. The EU has even set a target to reduce microplastic releases by 30% by 2030 (EU Environment microplastics). And many countries, including the US, UK, France, and South Korea, have banned intentional microplastics in cosmetics (Nature Scientific Reports microplastics study). So, look for a pencil that says "microplastic-free" or check the ingredients for polyethylene or polypropylene. It's better for your eyes and the planet.
Step 5: Test and Compare
Once you've narrowed down your options, it's time to test. But before you do, remember the safety rules: don't share your makeup, don't use expired products, and always remove your eye makeup before bed (Cosmetics history). These are simple but crucial. When you test, apply a small amount on your hand first to check for allergic reactions, which often show up as red, irritated skin (MedlinePlus Cosmetics). Then, try it on your lash line. See how it glides, how pigmented it is, and how it lasts. Here's a quick comparison of what to expect from different types:
| Type | Best For | Finish | Ease of Use |
|---|---|---|---|
| Pencil | Everyday definition | Matte or satin | Easy |
| Kohl | Smoky looks | High intensity, soft | Moderate |
| Gel | Precise lines | Glossy | Requires brush |
| Cream | Blending | Matte or shimmer | Moderate |
| Liquid | Cat-eye | High shine | Steep learning curve |
This table is adapted from general knowledge, but the key takeaway is that kohl is for smoky, not for precise. So if you want a safe kohl pencil, pick a reputable brand, check the ingredients, and you're good.
What Can Go Wrong
Here's the warning: if you use a traditional kohl that contains lead, you could be exposing yourself to a toxic substance. Studies have documented elevated blood lead levels in users of some traditional kohl products, especially children (Britannica kohl). Lead is a neurotoxin, and there's no safe level. So, never buy kohl from an unregulated source. Stick to brands that comply with safety standards.
The Bottom Line
The single most important thing to remember is this: always check the ingredient list. If you see lead, antimony, or other harmful substances, walk away. Your eyes are worth more than a trendy look. Choose a kohl pencil from a reputable brand that lists safe pigments like iron oxide, and you can enjoy the smoky look without the risk.
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