Here are my reviews and the ingredients list for both:
RMS Beauty Un Cover-Up review
*Cocos Nucifera (Coconut) Oil, *Ricinus Communis (Castor) Seed Oil, *Cera Alba (Beeswax), *Theobroma Cacao (Cocoa) Seed Butter, *Simmondsia Chinensis (Jojoba) Seed Oil, Tocopherol(non-GMO), *Rosmarinus officinalis (Rosemary) Extract, and may contain: [+/- Titanium Dioxide CI 77891, Iron Oxides CI 77492, CI 77491, CI 77499]
W3ll People Narcissist Review
Sunflower oil* infused with green tea*, reishi mushroom*, and wild harvested bayberry, castor oil, beeswax*, silica, essential oils, safflower oil, pomegranate extract, tocopherol [+/- titanium dioxide, iron oxides, mica].
To compare the two formulas:
RMS Beauty is a richer, creamier formula. Coconut oil, while being very inert and unlikely to cause irritation, can be pore-clogging on some skins, and the same is true of cocoa butter.
The W3LL is sunflower oil based, which is a lighter oil and less likely to cause clogged pores. It does contain essential oils, which may irritate very sensitive skins (it's not overly fragranced, and I do count even essential oils as fragrance - I can't use Origins skincare because of the amount they pack into their products.) W3LL is still a pleasantly creamy texture to apply and blend, but it is somewhat drier in texture, and has a more matte finish on the skin.
For most skins, I would recommend the W3LL Narcissist. W3LL also has a slightly wider range of colours. For an extremely dry skin, I would recommend the RMS Beauty. I am using the W3LL happily for most of the year, but I was tempted to repurchase the RMS at a couple of points during the very cold weather in the winter, and will repurchase the RMS next winter.