when they ask me what's my lash serum but it's really just castor oil

The video uses a common beauty hack (castor oil for lash growth) and presents it as a secret, creating intrigue. The visual demonstration is simple and relatable, making it easy for viewers to understand and potentially replicate.

The creator demonstrates applying castor oil to their eyelashes, implying it is the secret behind their lash growth. The video shows the castor oil in a bottle, being applied with a brush, and then a close-up of the eyelashes.

castor oil: ACTS - it is applied to the eyelashes to promote growth. Removing it would change the video's demonstration. (a) it ACTS — its interface is operated, it generates or edits something, a visible result comes from it, or someone says what it does for them; (b) it merely APPEARS — a corner watermark, a channel or studio logo, an end card, a credit, a name on clothing, a repost stamp.