Miami Beach SPF: Salt Lies Fueling Pores' Yeast?

By Franklin Everett Shaw

April 6, 2026

The sun is blazing, the waves are calling, and Miami Beach is buzzing. But for some, paradise can come with a price: tiny, itchy bumps that just won’t quit. We’re talking about fungal acne, and the combination of SPF, sweat, and saltwater can be a perfect storm for a breakout.

This isn’t your average acne.

This guide is your hyper-local survival kit to keeping your skin clear while soaking up the Miami Beach vibes. We’ll dive deep into identifying fungal acne, choosing the right SPF from your local CVS or Walgreens, and crafting a post-beach skincare routine that actually works.

First, let’s talk about what we’re up against. Fungal acne, or Malassezia folliculitis, isn’t caused by bacteria like typical acne. It’s caused by an overgrowth of yeast, specifically Malassezia, which naturally lives on our skin.

Think of it like this: Miami’s humidity is great for palm trees, but not so great when it feeds the yeast on your skin.

Here’s how to tell if you’re dealing with fungal acne:

The bumps are usually small, uniform in size, and itchy.
They often appear on the chest, back, and upper arms, but can also show up on the face.
Unlike regular acne, you might not see blackheads or whiteheads.
It tends to flare up in humid environments or after sweating.

Now, let’s address the elephant in the room: SPF. We all know we need it in Miami Beach, but many sunscreens contain ingredients that Malassezia loves to feast on.

Oils and esters are common culprits.

Here’s the key: look for oil-free and non-comedogenic sunscreens. But don’t just trust the label; read the ingredient list.

Specifically, avoid sunscreens high in these ingredients:

Coconut oil (Caprylic/Capric Triglyceride) - a very common ingredient in “natural” sunscreens.
Olive oil
Polysorbates (especially Polysorbate 20)
Fatty acids

So, what can you use? Here are a few options you can find at your local Miami Beach CVS or Walgreens:

La Roche-Posay Anthelios Melt-In Sunscreen Milk: While not perfect, it’s generally well-tolerated by those prone to fungal acne. Look for the oil-free version.
EltaMD UV Clear Broad-Spectrum SPF 46: A classic for a reason. It’s oil-free, non-comedogenic, and contains niacinamide, which can help reduce inflammation.
Neutrogena Ultra Sheer Dry-Touch Sunscreen: A budget-friendly option that’s widely available. Just make sure to wash it off thoroughly.

Pro Tip: Mineral sunscreens (containing zinc oxide and titanium dioxide) are generally safer bets, as they’re less likely to feed Malassezia.

But sunscreen is only half the battle. Saltwater exposure can also contribute to fungal acne flare-ups.

Think of it this way: the salt can disrupt your skin’s natural barrier, making it more susceptible to yeast overgrowth.

That’s why a solid post-beach cleansing routine is crucial.

Here’s a step-by-step guide:

Rinse off immediately: As soon as you’re done swimming, rinse off with fresh water to remove salt and sunscreen residue. The public showers along Ocean Drive are your friend.
Use an anti-fungal cleanser: This is where things get interesting. Look for cleansers containing ketoconazole or selenium sulfide.
Ketoconazole Shampoo (Nizoral): Yes, the dandruff shampoo. It contains ketoconazole, a powerful anti-fungal. Use it as a body wash 2-3 times a week. You can find this at any CVS or Walgreens.
Selenium Sulfide Lotion (Selsun Blue): Another dandruff fighter that works wonders on fungal acne. Use it similarly to ketoconazole shampoo.
Leave it on for a few minutes: Let the cleanser sit on your skin for 2-3 minutes before rinsing off. This allows the active ingredients to do their job.
Moisturize with a fungal-acne safe moisturizer: Hydration is key, but choose wisely. Look for moisturizers that are oil-free and contain ingredients like hyaluronic acid or ceramides.
The Ordinary Hyaluronic Acid 2% + B5: A simple, affordable, and effective option.
CeraVe Moisturizing Lotion: Another classic that’s generally well-tolerated.

Common Mistakes and Pitfalls:

Over-exfoliating: Exfoliating too much can irritate your skin and make fungal acne worse. Stick to gentle exfoliation once or twice a week.
Using comedogenic makeup: If you’re wearing makeup, make sure it’s oil-free and non-comedogenic.
Not washing your workout clothes: Sweat-soaked clothes are a breeding ground for Malassezia. Wash them immediately after working out.
Ignoring your diet: While not a direct cause, a diet high in sugar and processed foods can contribute to inflammation, which can worsen fungal acne.

When to See a Dermatologist:

If your fungal acne doesn’t improve with over-the-counter treatments, it’s time to see a dermatologist. They can prescribe stronger anti-fungal medications or recommend other treatments.

Living in Miami Beach means embracing the sun and the sea. But with a little knowledge and the right skincare routine, you can enjoy the beach without sacrificing your skin. So grab your sunscreen (the right kind!), hit the sand, and remember to rinse, cleanse, and moisturize. Your skin will thank you.