If you’ve been loading up on supplements in hopes of achieving clear, glowing skin, you may want to take a closer look at what’s actually in your routine. According to dermatologist and YouTuber Dr. Dray, some of the most popular supplements don’t just fail to improve acne—they may actually make it worse.
“Supplements are often perceived as safe,” she explains, but unlike medications, they’re not tightly regulated—meaning dosages, ingredients, and potential side effects can vary widely. And in many cases, there’s little evidence they benefit your skin at all.
Here are five common supplements Dr. Dray says could be standing in the way of a clear complexion:
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1. Vitamin B12
Vitamin B12 is essential for many people—but taking too much can be problematic for your skin.
Dr. Dray notes a long-standing link between high doses of B12 and acne flare-ups. In some cases, it may even fuel acne-causing bacteria or increase inflammation within the pores.
What to watch for: Small, uniform breakouts that appear suddenly on the face, chest, or back.
2. Biotin (and B-Complex Vitamins)
Biotin is often marketed for stronger hair and nails—but it’s not always skin-friendly.
High doses, especially when combined with other B vitamins like B6 and B12, can trigger breakouts. Dr. Dray points out that supplement doses are often much higher than what your body actually needs.
The result? More oil production and clogged pores—aka the perfect environment for acne.
3. Vitamin B6
Another member of the B-vitamin family, vitamin B6 can also contribute to acne when taken in high amounts.
While it’s important for overall health, over-supplementing may disrupt the skin’s balance and lead to sudden breakouts—especially when combined with other B vitamins.
4. Iodine (Including Kelp Supplements)
Iodine is commonly found in thyroid-support supplements and sea-based products like kelp—but too much can irritate your skin.
Dr. Dray explains that high iodine intake has been linked to acne-like eruptions, particularly small pus-filled bumps. Even certain diets high in iodine (or supplements that concentrate it) can trigger flares.
5. Whey Protein
If you’re into fitness, this one might hit close to home.
Whey protein—derived from milk—is a popular muscle-building supplement, but it’s also frequently associated with acne. According to Dr. Dray, it may increase levels of insulin-like growth factor (IGF-1), which can stimulate oil production and clog pores.
It can also amplify hormonal signals that contribute to breakouts, especially along the jawline, chest, and back.
The Bottom Line
Dr. Dray says supplement-related acne often follows a specific pattern:
- Breakouts appear suddenly and all at once
- Spots look very similar (called “monomorphous” acne)
- They show up on the face, chest, back, or shoulders
- They improve within a few weeks after stopping the supplement
Not all supplements are skin-friendly—and some may be doing more harm than good. While they’re often marketed as a quick fix for beauty concerns, the reality is that many don’t deliver results for clear skin and can even trigger breakouts in the process.
If you’ve noticed sudden acne and recently added a new supplement to your routine, it may be worth re-evaluating—and talking to a healthcare provider about what your body actually needs.
