Common actives listed in lash serums and primers include amino acids, vitamin E, hyaluronic acid, ceramides, and vitamin B5 — ingredients typically used for conditioning, hydration, or strengthening the lash fibers.
Common lash-enhancement products include mascaras, lash serums, magnetic false lashes, pre-bonded/self-adhesive and press-on lash clusters, strip lashes used with adhesive, and DIY extension kits.