What's in my lip gloss?

The corpus

The sourcing discipline is identical to the foundation study: every product here carries an SPF claim, which in the United States makes it an over-the-counter drug, and the manufacturer must file the complete ingredient declaration with the FDA. Nothing in this corpus comes from a retailer listing or a transcription site.

Slide between two glosses

Pick any two and watch the formulas converge or diverge. Matching ingredients line up; the rest is where the products actually differ.

The common spine — such as it is

These ingredients appear in at least 75% of the corpus.

Thirty most common ingredients

Why there's no cost, margin or R&D study here

• This corpus supports the ingredient-comparison study only. Unlike SPF foundation, true SPF lip gloss on DailyMed is held almost entirely by small, independent or direct-to-consumer sun-care brands -- not one product here is made by a company that files financial statements with the SEC the way L'Oréal, Estée Lauder, Coty or LVMH do for foundation. That rules out a cost-to-make/gross-margin comparison and an R&D-vs-quality comparison for this category; there is no public filing to source either from. Recorded as a negative result, not a silent gap.
• The category is small: a DailyMed search across 'lip gloss', 'gloss' and 'lip shine' SPF filings turned up roughly a dozen distinct lip-gloss-format OTC labels total, of which five met every inclusion criterion below.
• Three otherwise-eligible filings were excluded rather than guessed at, each for a different filing defect: LALICIOUS Hydrating Butter Gloss SPF 30 and Good Weather Skin Daily Lip Sun Gloss SPF 30 each concatenate two shades' full ingredient lists back-to-back in one untagged block with no structural marker reliable enough to split on; PURE SOL SPF15 Lip Gloss files its inactive-ingredient declaration as a run of names with no separating punctuation at all (commas, bullets), which cannot be split into ingredient tokens without guessing where one multi-word INCI name ends and the next begins; Alleyoop Sun Serum Lip Oil files its entire ingredient section as an embedded label photo with no machine-readable text, so there is nothing to parse.
• No retail price is recorded for this corpus (unlike data/prices.json for foundation) -- these are indie brands sold through their own sites and small retailers where a stable, citable list price is harder to establish than for the mass/prestige lines in the foundation corpus, and price was not load-bearing for the one study this corpus supports.
• An FDA filing is verbatim what the manufacturer submitted, including typos. Corrections are recorded per-ingredient in the normalization layer, never silently.