Tarte has finally launched a Lip Stain ($24) based on its wildly popular  tarte Cheek Stain. Although tarte is noted for its green credentials (it was one of our Five Best eco friendly makeup companies last year), its marketing people bring a whiff of the lab to this lip gloss with something called "LipSurgence Technology" that is supposed to increase the moisture of our smackers by 6000%.

Whereas the Cheek Stain majors on fruit extracts, Lip Stain has a peptide, palmitoyl heaxapeptide-14. This appears to have been borrowed from tarte Recreate Wrinkle Rewind Techolnogy. There is also salicornia extract, a coastal growing herb (mainly in western Europe) that has strong antioxidant properties.

Otherwise there are couple of waxes (eg cera alba) and around seven oils, including meadowfoam. Meadowform seeds are 60% omega-9 fatty acids. In practice, it behaves like a safe silicone, adding gloss and helping with the retention of moisture.

Unfortunately, tarte has chosen to include a sweetener called stevioside. On the plus side, it has no calories, but it also has a controversial safety record. In the UK, it is not permitted for use in food. There are numerous studies that suggest it is, amongst other things, a reproductive toxin. On the other hand, the WHO declared in 1999 (I couldn't find anything more recent) that the data wasn't good enough to say one way or another and there are studies that contend that it is relatively safe.

Ingredients in Tarte Lip Stain

Ricinus Communis (Castor) Seed Oil, Caprylic/Capric Triglyceide, Vegetable Oil, Candelilla Cera, Cera Alba, Hydrogenated Vegetable Oil, Castor Oil Bis-Hydroxypropyl Dimethicone Esters, Ozokerite, Simmondsia Chinensis (Jojoba) Seed Oil, Limnanthes Alba (Meadowfoam) Seed Oil, Mentha Piperita (Peppermint) Oil, Dimethyl Isosorbide, Stevioside, Salicornia Herbacea Extract, Palmitoyl Hexapeptide-14, Ascorbyl Palmitate, Tocopherol, Glycine Soja (Soybean) Oil, Red 27 (CI 45410). (+/-): Iron Oxides (CI 77492, CI 77499), Red 28 Lake (CI 45410), Red 28 (CI 45410), Red 7 Lake (CI 15850), Yellow 5 Lake (CI 19140

Ingredients in Tarte Cheek Stain

Propylene Glycol, Water, Nonyl Nonoxynol-150, Glycerin, Sodium Stearate, Laureth-23, Lycium Barbarum Fruit Extract, Vitis Vinifera (Grape) Seed Oil, Euterpe Oleracea Fruit Extract, Malpighia Punicifolia (Acerola) Fruit Extract, Punica Granatum Extract, Passiflora Incarnata Fruit Extract, PVP, Fragrance (Natural). (+/-): Mica, Bismuth Oxychloride (CI 77163), Titanium Dioxide (CI 77891), Iron Oxides (CI 77489, CI 77491, CI 77492, CI 77499), Carmine (CI 75470), Red 33 (CI 17200), Red 40 (CI 16035), Yellow 5 (CI 19140, Blue 1 (CI 42090)