Walk into any Sephora or Target today and you’ll find a dedicated K-beauty section that simply didn’t exist five years ago. The US imported roughly $1.8 billion in Korean cosmetics in 2023 alone — a figure that’s climbed every single year since 2018 as sheet masks, snail secretion serums, and ceramide-loaded essences moved from niche curiosity to medicine cabinet staple.
But here’s the question most consumers never think to ask: are those products held to the same safety standards as the domestic brands sitting right next to them on the shelf?
The short answer is no. The longer answer is more complicated than either the brands or the retailers typically bother explaining.
The FDA’s Cosmetics Authority Is Newer Than You Think
For most of its history, the FDA had surprisingly limited power over cosmetics. Under the original Federal Food, Drug, and Cosmetic Act of 1938, companies weren’t required to register facilities, list product ingredients with the FDA, or seek any pre-market approval before putting a product on shelves. That’s why the often-cited comparison — the EU restricts over 1,400 cosmetic ingredients while the FDA has prohibited or restricted approximately 11 categories — isn’t hyperbole. It reflects nearly a century of regulatory infrastructure that simply wasn’t built.
That changed, at least partially, with the Modernization of Cosmetics Regulation Act — MoCRA — signed into law in December 2022. For the first time, MoCRA gave the FDA clear authority to require facility registration for both domestic and foreign cosmetics manufacturers, mandate product listing with ingredient disclosure, order mandatory recalls of unsafe cosmetics (previously the process was entirely voluntary), and require companies to report serious adverse events within 15 business days.
Large manufacturers faced a registration deadline of December 29, 2023. Smaller companies had until December 29, 2024. So right now, in 2026, we’re still in the early enforcement phase — meaning compliance monitoring hasn’t fully caught up to the volume of products flowing through third-party online platforms.
How Korea Actually Regulates Cosmetics
South Korea’s Ministry of Food and Drug Safety (MFDS) has a more structured cosmetics regulatory framework than the US maintained before MoCRA. Korea keeps a “negative list” of prohibited and restricted ingredients — over 1,680 substances as of the most recent published update — and requires products to be registered with the MFDS before they hit Korean shelves.
But here’s where it gets genuinely interesting for US shoppers: Korea uses a tiered system that doesn’t map cleanly onto US regulatory categories.
Korean cosmetics law splits products into two types. First, general cosmetics — basic moisturizers, cleansers, toners, and makeup. Second, functional cosmetics — products making claims related to whitening, UV protection, or anti-wrinkle effects. Functional cosmetics require a separate, more rigorous approval process, not unlike how OTC drugs work in the United States.
The FDA, however, recognizes no middle category between “cosmetic” and “drug.” Under US law, if a product claims to change the structure or function of the body — to stimulate collagen production, inhibit melanin synthesis, or accelerate cell turnover — that is a drug claim. And a product making a drug claim without FDA drug approval is, legally, an unapproved drug. This creates a meaningful grey zone for dozens of popular K-beauty product types the moment they enter the US market.
Specific Ingredients Worth Knowing About
Take EGF, or Epidermal Growth Factor. It’s been a recurring buzzword in K-beauty anti-aging serums for the past several years. In Korea, EGF-containing products with appropriate functional claims can be approved through the MFDS functional cosmetics pathway. In the US, a product claiming to “stimulate skin cell growth” or “accelerate repair” is making a drug-level claim. The ingredient itself isn’t explicitly banned in cosmetics, but the associated marketing language can push a product into unapproved drug territory — the FDA has issued warning letters to cosmetics companies for exactly this type of claim language.
Then consider arbutin, a skin-brightening ingredient found in hundreds of Korean toners and essences. The MFDS has set specific concentration limits: 2% for alpha-arbutin in leave-on products. The FDA has no equivalent defined limit, which means there’s no standardized enforcement mechanism for US importers unless a specific adverse event or safety complaint triggers a review.
The sunscreen question is the most concrete. Korea classifies sunscreens as functional cosmetics and has approved a broader list of UV filters than the FDA allows. Tinosorb S and Tinosorb M — widely used in Korean and European sunscreens and considered highly effective broad-spectrum filters — have been in FDA review for years under a “time and extent” application process without reaching a final determination. If you’ve been sourcing Korean sunscreens from international retailers specifically to access those UV filters, be aware: those products are not legally considered sunscreens in the US market, and their safety data hasn’t been evaluated under FDA standards.
What Actually Gets Checked — And What Doesn’t
When a US-based brand launches a new moisturizer, there’s still no mandatory pre-market safety review under current law — that’s a known regulatory gap. But when a Korean brand’s product enters the US through an established domestic importer or distributor, that importer takes legal responsibility for ensuring US compliance. That accountability matters.
The problem is the direct-import channel. When you buy from an overseas retailer shipping internationally — through an Amazon third-party seller, a Korean e-commerce site, or a social media storefront — that product hasn’t been reviewed or cleared by anyone in the US regulatory chain. The FDA does conduct import inspections, and products can be detained or refused entry if they’re found to violate US law. But the agency reviews only roughly 3% of imported cosmetics shipments for compliance issues. Most imported products arrive and reach consumers without any US-side verification.
Under MoCRA, foreign manufacturers exporting to the US are required to register with the FDA, the same as domestic companies. But monitoring compliance among overseas sellers who ship directly to consumers — particularly those operating through major e-commerce platforms — is still catching up to the actual volume of product moving through those channels every day.
What to Check Before Adding Something New to Your Routine
None of this means Korean skincare is categorically unsafe. It isn’t. Plenty of K-beauty brands that sell widely in the US have invested seriously in compliance — they work with domestic importers, register facilities under MoCRA, and reformulate where US and Korean standards diverge. The category has genuinely pushed US cosmetics innovation forward by normalizing more sophisticated routines and introducing clinically grounded formulations at accessible price points.
But “popular” and “independently verified” are two very different things. Here’s what’s worth checking before you commit to a new product:
Find the US responsible party. Under MoCRA, every cosmetic sold in the US must have a responsible person — a US-based company or individual accountable for regulatory compliance. If the only identifying information on the package is a Korean address and no domestic distributor is listed, that’s a gap worth flagging.
Run the ingredient list against the FDA’s prohibited and restricted ingredient database. The FDA’s list is short but consequential — it includes mercury compounds, certain preservative-grade formaldehyde concentrations, and a number of restricted color additives. Some older Korean formulations have historically been flagged for containing regulated substances. The database is publicly searchable at FDA.gov.
Be skeptical of drug-level language on cosmetic packaging. “Regenerates skin cells,” “reverses wrinkles,” “eliminates hyperpigmentation” — if you see that kind of language on a product labeled as a cosmetic rather than an OTC drug, the brand is making claims it may not be able to back up under US regulatory standards. That’s not just a marketing problem; it can signal that the product was formulated for a different regulatory environment.
For sunscreens specifically, stick to products sold through established US importers. The approved UV filter list matters. The FDA has a clear position on unapproved sunscreen active ingredients, and products using UV filters not on that approved list — regardless of how well they perform in Korean or European markets — don’t meet the US definition of a sunscreen.
K-beauty’s influence on the US skincare industry has been largely positive. The 10-step routine introduced millions of Americans to the idea of hydration layering, barrier support, and gentle exfoliation. But the regulatory gap between what gets approved in Seoul and what’s been vetted for US consumers is real, documented, and worth knowing about before your next skincare haul.
Your skin doesn’t care what flag is on the packaging. It cares whether what you’re putting on it is safe.
Written by Nour Abochama, Host & Quality Control Expert, Nourify & Beautify. Learn more about our team
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Related from our network
- How Cosmetic Ingredient Claims Are Verified in an Independent Lab — Qalitex Laboratories explains how third-party testing confirms whether a skincare product’s ingredient list matches what’s actually inside
- Understanding Raw Material Compliance for Cosmetics Suppliers — Ayah Labs covers how ingredient sourcing and COA verification protect the integrity of finished beauty formulations
