I started using the Cosrx Advanced Snail 96 Mucin Power Essence sometime in 2022, though it might have been even earlier (I can’t find the receipts to confirm!). Before discovering this essence, I relied on hyaluronic acid serums from The Ordinary and Good Molecules, but found that those bottles only lasted about a month each. While they’re affordable at $6-$10 per ounce, the cost quickly adds up to $72-$120 per year if you’re repurchasing monthly. In contrast, the Cosrx snail mucin, priced at $25 for 3.38 oz, lasts me around six months per bottle—offering significant cost savings without compromising results.

After over three years of using this essence, I’m pleased to say I’ve experienced no negative reactions. My skin hasn’t become immune to its effects, which is something I’ve run into with other products over time.

However, I’ve seen mixed experiences with this product. Some people’s skin reacts poorly to snail mucin and Korean skincare in general, with complaints about worsening conditions, including fungal acne. Snail mucin can cause issues for several reasons:

• Growth Factors: The proteins and growth factors in snail mucin can clog pores, particularly in those with oily or acne-prone skin.
• Allergic Reactions: People allergic to dust mites may have eczema flare-ups or experience a weakened skin barrier, which can lead to acne.
• Improper Application: Applying snail mucin to dry skin can backfire, causing moisture loss and irritation, which disrupts the skin barrier and exacerbates acne and eczema.
• Overuse: Using too much can create an overly moist environment, making skin susceptible to bacterial and fungal acne.

Given that I have oily skin, occasional eczema flare-ups, and even react negatively to dust (all factors that typically don’t play well with snail mucin), it’s fascinating that this essence works so well for me. I love how hydrating it is. Like hyaluronic acid, snail mucin draws moisture into the skin, helping to maintain hydration and suppleness. This also means that any hydrating products I layer on top—like moisturizers—are even more effective.

I typically use one pump in the morning and one pump at night. Since my skin is oily, that’s the perfect amount to rehydrate after cleansing without overwhelming my skin.

To wrap it up, while snail mucin may not work for everyone, the Cosrx Advanced Snail 96 Mucin Power Essence has been a game changer for me. Despite having oily skin, occasional eczema, and allergies to dust—factors that could easily make this product a potential issue—it’s proven to be incredibly hydrating and effective without causing any breakouts or irritation. Its affordability and long-lasting bottle make it a much more sustainable option compared to other serums I’ve used. With consistent results over the past few years, this essence has earned a permanent spot in my skincare routine