L-Cystine on the European supplement market
Most ingredient pages tell you what L-Cystine is. This one shows how the European supplement market actually uses it — who sells it, who advertises it, and at what price.
RavenBI Market Intelligence · measured 25 Oct 2026 · observed, not estimated. Ad counts are active creatives in Meta's public Ad Library; product and price data come from public listings across the EU and US. Figures change weekly.
RavenBI tracks 113 L-Cystine products from 74 brands across the EU and US. 9 brands advertise it on Meta right now, and new-ad activity held roughly steady in the last 30 days. Italy shows the heaviest advertising, while Italy has the largest shelf. The median EU shelf price sits around €37.
New L-Cystine ads launched per month on Meta — last 6 months.
How brands use L-Cystine, market by market
Products and brands that sell it, active ads and brands that advertise it, and the median shelf price — per market.
| Market | Products | Brands selling | Active ads | Brands advertising | Median price |
|---|---|---|---|---|---|
| Germany | 18 | 8 | 1 | 1 | €48.90 |
| United Kingdom | 3 | 2 | — | — | — |
| France | 22 | 16 | 16 | 1 | €33.93 |
| Italy | 40 | 25 | 16 | 3 | €33.00 |
| Spain | 16 | 12 | 7 | 3 | €31.82 |
| Romania | 7 | 5 | — | — | 125.00 RON |
| Austria | 3 | 2 | 4 | 1 | — |
| Switzerland | 1 | 1 | — | — | — |
Who is on the shelf right now
Top brands by number of L-Cystine products, and the forms they use.
Regulatory & positioning
| Botanical source | L-Cystine |
|---|---|
| Novel food status | — |
| EFSA authorized health claims | None authorized |
| Marketed categories (observed) | beauty |
No EFSA-authorized health claim exists for L-Cystine, yet brands market it for beauty — the gap between claim and positioning is itself a competitive signal.
Where L-Cystine shows up
Across the ad channels and marketplaces RavenBI tracks.
See the ads, listings and shops behind these numbers →
What is L-Cystine?
L-Cystine is a sulfur-containing amino acid formed by the oxidation of two cysteine molecules. It is commonly included in dietary supplements as a source of amino acids and is often found in formulations marketed for beauty-related purposes, such as hair, skin, and nail health. L-Cystine is typically used alongside other amino acids, vitamins, and minerals in complex blends. Its role in supplement formulations is primarily as a building block ingredient contributing to protein synthesis and structural components in the body.
This overview was generated with AI from public information and RavenBI's classification. Informational only, not medical advice.
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