Tower 28 Beauty

If you've ever stood in front of your bathroom mirror with a face mist in one hand and a setting spray in the other, wondering which one actually belongs in your routine—you're not alone. The world of face mists has exploded, and two of the most popular categories are clean beauty setting sprays and SOS sprays (often powered by hypochlorous acid). They both come in spray bottles, they both feel refreshing, and they both promise to improve your skin. But they serve very different purposes.

In this guide, we'll break down exactly what each product does, when to use it, and how to decide which one (or both!) deserves a spot in your clean beauty arsenal. By the end, you'll never grab the wrong bottle again.

What is a Clean Beauty Setting Spray?

A setting spray is the final step in your makeup routine. Its primary job is to lock everything in place—foundation, concealer, blush, bronzer—so it lasts longer, doesn't transfer, and stays fresh throughout the day. Clean beauty setting sprays go a step further by using non-toxic, skin-friendly ingredients that won't clog pores or irritate sensitive skin.

Most clean setting sprays contain humectants like glycerin or aloe vera to help meld makeup layers together, and some include a light mist of film-forming polymers (derived from natural sources) that create a breathable barrier. They are formulated to be non-comedogenic and free of drying alcohols, synthetic fragrances, and other potential irritants.

Think of it as a gentle seal—not a glue—that helps your makeup stay put without feeling tight or stiff. For anyone with sensitive, acne-prone, or rosacea-prone skin, a clean beauty setting spray is a game-changer because it provides longevity without triggering flare-ups.

What is an SOS Spray?

An SOS spray is a completely different animal. It's a skincare treatment that comes in a mist format, designed to calm, soothe, and protect the skin barrier. The star ingredient in most SOS sprays—including Tower 28's iconic version—is hypochlorous acid (HOCl).

Hypochlorous acid is a naturally occurring molecule produced by your white blood cells to fight bacteria and inflammation. When applied topically, it works as a gentle disinfectant that helps reduce redness, kill acne-causing bacteria, calm eczema flare-ups, and soothe rosacea symptoms. It's non-irritating, non-stinging, and safe for even the most reactive skin types.

An SOS spray is not a makeup step—it's a skincare step. You can use it before moisturizer, after cleansing, throughout the day for a refresh, or even after a workout to cool down and prevent breakouts. Many people also spritz it on after picking at a pimple or when their skin feels hot and angry.

One of the most popular options is the Travel SOS Rescue Spray, which is TSA-friendly and perfect for on-the-go calming. For those who use it daily, the SOS Rescue Spray Refill offers a more sustainable, larger-size option to keep your skin balanced and happy.

Key Differences at a Glance

Feature	Setting Spray	SOS Spray
Primary Purpose	Lock in makeup, extend wear	Calm skin, reduce redness, fight bacteria
Key Ingredients	Humectants, natural polymers, aloe	Hypochlorous acid (HOCl)
When to Use	After makeup application	After cleansing, throughout the day, or after skincare
Best For	Oily, combination, or normal skin	Sensitive, acne-prone, rosacea, eczema-prone skin
Makeup Safe	Yes, designed to work over makeup	Yes, can be used over makeup without disturbing it
Skin Barrier Benefit	Minimal	Significant—soothes and protects

Which One Do You Need?

The answer depends on your skin concerns and your daily routine. Here's a simple breakdown to help you decide.

Choose a Setting Spray If...

• You wear makeup regularly and want it to last through work, humidity, or long days.
• You have normal to oily skin and don't struggle with chronic redness or breakouts.
• You want a final step that refreshes your look without adding extra skincare benefits.

Choose an SOS Spray If...

• You have sensitive, reactive, or redness-prone skin (rosacea, eczema, or acne).
• You want a multi-functional product that calms irritation, prevents breakouts, and supports skin healing.
• You prefer a minimal makeup look and want a skincare-first approach.
• You work out regularly or live in a hot climate and need a midday reset.

You Can (and Should) Use Both

Many people find that using an SOS spray in their skincare routine and a setting spray over their makeup gives them the best of both worlds. For example, you can spritz the SOS LipSoftie® Lip Treatment for lips and then apply your lipstick, or use an SOS spray before tinted moisturizer to calm redness. The key is layering in the right order.

If you're building a complete clean beauty routine, consider starting with an SOS spray after cleansing, then applying your moisturizer and SPF, followed by makeup (like the SunnyDays™ Tinted SPF 30 for a glow), and finishing with a setting spray. This sequence ensures your skin is soothed and protected at every layer.

How to Use an SOS Spray in Your Routine

If you're new to hypochlorous acid sprays, here's a step-by-step guide to getting the most out of your SOS spray:

1. After cleansing: Spritz 2-3 times on damp skin before applying serum or moisturizer. This helps calm any post-cleanse redness.
2. Throughout the day: Use it as a refreshing mist whenever your skin feels hot, irritated, or after a workout. It's safe to use over makeup.
3. Before bed: Apply after your nighttime skincare routine to support overnight healing and reduce morning breakouts.
4. On breakouts: Spray directly on pimples or red patches to help reduce bacteria and inflammation without drying out the skin.

Common Myths About SOS Sprays

Myth 1: SOS sprays are just expensive water. Not true. Hypochlorous acid is a scientifically proven active ingredient that's used in medical settings for wound care. Its benefits for acne, eczema, and rosacea are backed by research.

Myth 2: They dry out your skin. Unlike alcohol-based toners, hypochlorous acid is gentle and non-drying. In fact, it helps maintain the skin's natural moisture barrier by reducing inflammation that can lead to transepidermal water loss.

Myth 3: You can't use them with other active ingredients. HOCl is compatible with most skincare ingredients, including hyaluronic acid, niacinamide, and vitamin C. Just avoid using it immediately after applying strong acids or retinoids—wait a few minutes before misting.

Final Thoughts: Which Spray Wins?

In the battle of setting spray vs SOS spray, there's no clear winner—because they serve different purposes. If you're looking for makeup longevity, a clean beauty setting spray is your best bet. If your priority is calming redness, preventing breakouts, or soothing sensitive skin, an SOS spray is a must-have.

For the ultimate clean beauty routine, we recommend keeping both on your shelf. Use your SOS spray as a daily skincare treatment and your setting spray as the finishing touch to your makeup look. Your skin will thank you for the extra care and protection.

Ready to give your skin the soothing relief it deserves? Start with the Travel SOS Rescue Spray—it's compact enough for your bag, powerful enough to calm redness on the go, and a perfect introduction to the world of hypochlorous acid skincare.