How to Start a Sunscreen Brand in the US: The SPF Regulatory Reality

You've spotted the whitespace. Maybe it's a reef-safe mineral SPF for surfers, a tinted sunscreen built for deeper skin tones, or a daily SPF moisturizer that doesn't pill under makeup. The idea is real. The market is hungry. And then you start researching how to actually make it, and you hit a wall of FDA monographs, NDA filings, and compliance language that reads like it was written for pharmaceutical lawyers.

This post is for product development teams who want to understand the SPF regulatory landscape before they commit budget, time, or formulation work. We'll walk through what sunscreen regulation actually requires in the US, where the common mistakes happen, and how to move from concept to a compliant, manufacturable formula without spending years doing it.

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Why Sunscreen Is Different From Every Other Skincare Product

Before anything else, you need to internalize this: in the United States, sunscreen is not a cosmetic. It's an over-the-counter (OTC) drug.

The FDA classifies sunscreen as an OTC drug product because it makes a drug claim, specifically that it prevents sunburn and reduces the risk of skin cancer and early skin aging caused by the sun. That classification changes everything: the ingredients allowed, the concentrations permitted, the label copy required, the testing protocols, and the manufacturing standards you have to meet.

This is the single most important thing to understand before you start building a sunscreen brand. A moisturizer with an SPF claim is not regulated like a moisturizer. It's regulated like a drug.

The OTC Monograph System

The FDA governs most sunscreens through what's called the OTC monograph system. Think of a monograph as a published rulebook for a specific drug category. If your formula follows the monograph exactly, you don't need to file a new drug application (NDA) before you can sell. You just have to comply.

For sunscreens, the operative document is the Sunscreen Final Monograph (21 CFR Part 352 was the older framework; the newer governing structure comes from the Coronavirus Aid, Relief, and Economic Security Act, or CARES Act, passed in 2020, which moved OTC drugs including sunscreens into an administrative order system). The practical effect for brands is the same: there is a defined list of permitted active ingredients, permitted concentration ranges, and required labeling standards. Stay within those boundaries and you can market your product without a separate FDA approval.

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The Permitted Active Ingredients List

This is where many founders get their first surprise. The FDA's permitted sunscreen actives list in the US is significantly shorter than what's available in Europe, Asia, or Australia.

As of the current framework, only two sunscreen active ingredients are generally recognized as safe and effective (GRASE) by the FDA:

• Zinc oxide (up to 25%)
• Titanium dioxide (up to 25%)

These are your mineral actives. They work by physically reflecting and scattering UV radiation.

A number of chemical (organic) UV filters that are widely used internationally, including avobenzone, octinoxate, oxybenzone, homosalate, octisalate, and others, are in a regulatory gray zone in the US. The FDA has not classified them as GRASE, and it has not classified them as not GRASE. They remain in a "pending" status while the FDA awaits additional safety data, particularly around systemic absorption. Brands can still use many of these chemical filters under the existing framework, but the regulatory uncertainty is real and worth understanding before you build your formula around them.

If you're planning a mineral-only sunscreen, you're working with the clearest regulatory path. If you want to use chemical filters, you need to understand which ones are permitted at what concentrations, and you need a formulation partner who knows where the lines are.

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SPF Testing: You Can't Just Claim a Number

You cannot put "SPF 30" on a label because you think your formula should provide that level of protection. SPF is a measured value, not a calculated one. Your finished product has to be tested by an accredited third-party lab using the FDA's prescribed in vivo or in vitro testing methodology.

The same applies to broad-spectrum claims. If your label says "broad spectrum," the product must pass the FDA's critical wavelength test, which confirms that it provides UVA protection in addition to UVB.

This testing is not optional, and it's not cheap. Budget for it as a non-negotiable line item in your launch costs. The good news is that once you have a stable, locked formula, the test results are yours. You're not retesting every production run, but you are retesting if you change the formula.

Water Resistance Claims

If you want to claim "water resistant (40 minutes)" or "water resistant (80 minutes)" on your label, that also requires specific testing. And the FDA is strict about the language: you cannot say "waterproof" or "sweatproof." Those claims are prohibited. The only permitted water resistance language is the time-based format above.

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Label Requirements for Sunscreen

Sunscreen labels are not like cosmetic labels. The FDA mandates specific language, specific placement, and specific format for OTC drug products. Here's what has to be on a compliant sunscreen label:

• Drug Facts box: This is the equivalent of a nutrition facts panel, but for drugs. It must include active ingredients with percentages, purpose, uses, warnings, directions, and inactive ingredients, all in a specific format and minimum type size.
• SPF value: Must appear on the principal display panel.
• Broad spectrum designation: If applicable and tested.
• Water resistance claim: If applicable and tested.
• Warnings: Including the required language about keeping out of eyes, use on children under 6 months, and the skin cancer/skin aging alert if the product is not broad spectrum or is below SPF 15.

This is an area where working with a licensed chemist and a regulatory specialist pays for itself. A label error on an OTC drug is not a cosmetic compliance issue. It can trigger FDA warning letters or product recalls.

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Manufacturing Standards: cGMP for OTC Drugs

Because sunscreen is an OTC drug, the facility that manufactures it must comply with current Good Manufacturing Practice (cGMP) regulations for pharmaceutical products, specifically 21 CFR Parts 210 and 211. This is a higher standard than cosmetic GMP.

cGMP for OTC drugs requires documented batch records, validated manufacturing processes, stability testing, in-process quality controls, and more. Not every contract manufacturer can produce OTC drug products. When you're sourcing a manufacturing partner for your sunscreen brand, you need to specifically confirm that they are set up for OTC drug manufacturing and that their facility has the documentation to prove it.

This is one of the most common places emerging brands get stuck. They find a cosmetic contract manufacturer they love, start the formulation process, and then discover the facility isn't equipped for OTC drug production. Vet your manufacturing partners early.

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The Private Label Sunscreen Shortcut (And Its Limits)

If you search "private label sunscreen," you'll find manufacturers offering pre-made SPF formulas you can put your brand name on. This is a legitimate path, and it's faster than custom formulation. But it comes with trade-offs worth understanding.

What private label gives you:

• A tested, compliant formula with existing SPF and broad-spectrum data
• Faster time to market
• Lower minimum order quantities in some cases
• Existing stability data

What private label limits:

• You don't own the formula. If the manufacturer discontinues it or raises prices, you have limited leverage.
• Differentiation is harder. Other brands may be selling the same base formula with a different label.
• Customization is constrained. You can often choose fragrance, packaging, and some aesthetic variables, but the actives and the core formula are fixed.

For brands building a long-term label with a distinct product story, custom formulation is usually the right call. For brands that need to move fast, test a market, or launch a complementary SPF product alongside a hero item in another category, private label can be a smart starting point.

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How to Formulate a Custom Sunscreen

This is where the actual product development work begins. A custom sunscreen formula has to solve several problems simultaneously:

1. Efficacy: The actives have to deliver the SPF and broad-spectrum protection you're claiming.
2. Stability: The formula has to remain stable across temperature and time. Zinc oxide and titanium dioxide are physical particles; suspension stability is a real formulation challenge.
3. Aesthetics: This is where most mineral sunscreens fail commercially. White cast, greasiness, pilling under makeup. These are formulation problems, not inevitable limitations.
4. Regulatory compliance: Every ingredient, every concentration, every label claim has to map back to the monograph.

Genie approaches sunscreen formulation through its AI formulator, which draws on a 180,000-row ingredient database and generates complete formulas with exact ingredient percentages. Every sunscreen formula generated on Genie is built within the regulatory constraints of the US OTC monograph framework. The free tier gives you the full formula. The Own Your Formula tier ($1,500 one-time per formula) adds a licensed chemist review and a manufacturing-ready tech pack you can take to any OTC-capable contract manufacturer.

Genie develops the formula. A contract manufacturer produces it. That distinction matters: Genie is your AI formulator and chemist-review layer, not the facility running your production batches.

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The Timeline Reality

Launching a sunscreen brand takes longer than launching a moisturizer or a serum. Here's a realistic sequence:

1. Concept and formulation: 2 to 6 weeks with an AI-assisted formulation tool; longer with traditional formulation routes.
2. Chemist review and tech pack: 2 to 4 weeks.
3. Manufacturer selection and sampling: 4 to 12 weeks depending on the facility and their queue.
4. SPF and broad-spectrum testing: 4 to 8 weeks at an accredited lab.
5. Stability testing: 3 to 12 months for real-time data (accelerated stability can be done in parallel).
6. Label review and Drug Facts compliance: 2 to 4 weeks.
7. Production run: 4 to 12 weeks.

End to end, a realistic timeline for a custom, compliant sunscreen from concept to first production run is 9 to 18 months. Brands that try to compress this timeline without cutting corners on testing or compliance are the ones that end up with regulatory problems post-launch.

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What Makes a Sunscreen Brand Win in the Market

Regulatory compliance is the floor. What actually builds a brand is the product story layered on top of it.

The sunscreen brands that have broken through in recent years, whether mineral-focused, reef-safe, tinted, or sport-specific, have done it by solving a real sensory or identity problem that existing products ignored. Supergoop built a category around daily SPF as a lifestyle habit. Black Girl Sunscreen addressed a real gap in formulation for deeper skin tones and built a community around it. Vacation leaned into a nostalgic, maximalist aesthetic that made sunscreen feel fun again.

None of those wins came from the formula alone. They came from a specific point of view about who the product was for and what it was solving. The formula has to work. But the brand has to mean something.

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Frequently Asked Questions

Is sunscreen considered a cosmetic or a drug in the US?

Sunscreen is classified as an OTC drug in the United States, not a cosmetic. Because it makes drug claims (preventing sunburn, reducing the risk of skin cancer), it falls under FDA drug regulations, including permitted active ingredients, required label formats, and manufacturing standards.

What sunscreen active ingredients are approved by the FDA?

Only zinc oxide (up to 25%) and titanium dioxide (up to 25%) are currently classified as generally recognized as safe and effective (GRASE) by the FDA. Several chemical UV filters are permitted under the existing framework but remain in a regulatory pending status while the FDA reviews additional safety data.

Do I need to test my sunscreen formula before selling it?

Yes. SPF values must be determined through accredited third-party testing. Broad-spectrum claims require a separate critical wavelength test. Water resistance claims require additional testing. You cannot self-certify these values.

Can I use a private label sunscreen to start my brand?

Yes, and it can be a legitimate path to market. Private label sunscreens come with existing SPF testing and regulatory compliance built in. The trade-off is that you don't own the formula, differentiation is harder, and customization is limited. Custom formulation gives you a proprietary product but takes longer.

What does cGMP mean and why does it matter for sunscreen?

cGMP stands for current Good Manufacturing Practice. Because sunscreen is an OTC drug, it must be manufactured in a facility that meets FDA pharmaceutical cGMP standards (21 CFR Parts 210 and 211). Not every cosmetic contract manufacturer is set up for this. Confirming OTC drug manufacturing capability is a critical step in vetting your production partner.

How long does it take to launch a sunscreen brand?

A realistic timeline from concept to first production run is 9 to 18 months for a custom, compliant sunscreen. The major time drivers are SPF testing (4 to 8 weeks), stability testing (3 to 12 months), and manufacturer lead times. Brands that rush this process risk launching with incomplete compliance documentation.

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Key Takeaways

• Sunscreen is an OTC drug in the US. That single fact governs your formula, your label, your manufacturer, and your testing requirements.
• Only zinc oxide and titanium dioxide are currently GRASE under the FDA framework. Chemical filters are permitted but carry regulatory uncertainty.
• SPF, broad-spectrum, and water resistance claims all require third-party testing. None of them are self-certifiable.
• Your label must include a Drug Facts box in the FDA-prescribed format. This is not optional and is not the same as a cosmetic ingredient list.
• Your manufacturer must be cGMP-compliant for OTC drug products. Verify this before you start formulation work.
• Private label is a faster path with real trade-offs. Custom formulation gives you a proprietary product and a real brand story.
• Realistic launch timeline: 9 to 18 months. Build that into your planning.

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Ready to build your SPF formula? Get started free on Genie and generate a complete sunscreen formula, active percentages included, within minutes. When you're ready for chemist review and a manufacturing-ready tech pack, the Own Your Formula tier has you covered.