Generate a UGC-style product demo video

**UGC product demo — Glowdrop vitamin-C serum · vertical, handheld, selfie-POV**

**Beat 1 — Unboxing reaction (0–8s).** Mid-20s woman at a sunlit bathroom counter, holding the phone selfie-style. She slides the serum out of its mailer, eyebrows up — genuine "oh wait, the dropper is glass" reaction. Slight handheld wobble, natural window light blowing out the window behind her.

**Beat 2 — Key feature demo (8–20s).** She turns the bottle to camera, taps the dropper, and squeezes three drops onto her fingertips — close handheld move in toward her hand to show the serum's pale-gold texture. Phone tilts as she pats it onto her cheekbone.

**Beat 3 — Result payoff (20–30s).** Cut to her face in the mirror, skin looking dewy, a satisfied little head-tilt and grin to camera. She holds the bottle up beside her face for the final frame.

Look: natural window light only, slightly warm, real skin texture, no studio polish — reads like a friend's Story, not an ad. Audio intent: casual voiceover layered over real dropper-click and packaging sounds, no lip-sync required. Delivered 9:16, 30s, caption-safe top and bottom margins.