Disclaimer: This is an independent creative test made with AI, for demonstration only. It isn't an ad for any brand shown or named, and isn't affiliated with, sponsored or endorsed by them. All trademarks belong to their owners
Nano Banana Pro - liquid pour and drip shots for skincare
Two skincare liquid shots, what went wrong with the physics and what I'd write next time
Tested by Nouamane Benbrahim
Have you ever asked AI for a thin liquid and gotten slime back?
The moodboard for my pink toner campaign had a glass of milk overflowing down the sides, so I wanted two liquid shots of the toner itself. The bottle is medicube's pink soothing toner, which I only used as a test. Both shots look great at a glance and both have a physics problem. The exact prompt sits under each image if you want to see what I wrote.
Here's what happened.
1. The overflowing glass
I asked for a tall glass filled to the brim with the toner, overflowing down the sides into a puddle. I even spelled out that the drips should be thin and liquid, toner and not cream.
Exact prompt
Create a new photorealistic image. Preserve the exact bottle, label and colours of the product, from the first reference. THE VIBE: Too much of a good thing — an overflowing, glossy, indulgent moment in a monochrome pink world. Early-2000s candy-glam, sticky-sweet and a little decadent. IDENTITY LOCK: The product from the first reference — the tall clear cylindrical bottle with a white flip-top cap, filled with translucent blush-pink liquid, a white label band with the dark-grey "medicube" wordmark and "PDRN PINK CICA SOOTHING TONER", two pink-outlined ingredient pills, and a thin pink stripe under the label. Do NOT alter its shape, colours or branding. THE SUBJECT: The bottle stands upright beside a tall clear drinking glass filled to the brim with the same translucent blush-pink toner, which has overflowed: glossy pink rivulets run down the outside of the glass and pool in a shiny puddle at its base. THE SETTING: A seamless pale-pink studio backdrop and tabletop, one continuous pink surface. THE LIGHT: Soft directional key from the left, casting a long soft shadow of the glass and bottle to the right; bright glossy highlights on the drips and puddle; overall warm pink cast. THE KEY DETAILS: The drips are thin and liquid (toner, not cream) — clear pink, catching light, with a few tiny bubbles. The puddle reflects the glass. THE MOOD: Pastel, glossy, faded-print retro still life. THE COMPOSITION: Square frame, glass slightly left of centre and taller, bottle standing to its right and a little forward, both at mid-frame height with pink space above. THE CAMERA: Editorial still-life, 85mm at a slightly low angle, both objects in sharp focus, gently soft background; restrained commercial styling in the spirit of Deakins' naturalistic light. THE LABEL: The medicube wordmark and product name clear and legible; smaller copy can be soft.
Real toner runs about as thin as water. These drips came out thick and rounded, more like gel, and the glass almost looks like it's melting. Telling it what the liquid isn't didn't do much for me here.
2. The macro pour
This one is a tipped bottle pouring a thin stream into a splash. The splash itself came out clean: the crown, the flying droplets and the little bubbles all look right.
Exact prompt
Create a new photorealistic image. Preserve the exact bottle, label and colours of the product, from the first reference. THE VIBE: Pure texture, pure gloss. A macro world of glossy pink liquid and bubbles, sweet enough to taste — the toner treated like a candy syrup. IDENTITY LOCK: The product from the first reference — the tall clear cylindrical bottle with a white flip-top cap, filled with translucent blush-pink liquid, a white label band with the dark-grey "medicube" wordmark and "PDRN PINK CICA SOOTHING TONER". Do NOT alter its colours or branding. THE SUBJECT: A thin stream of translucent blush-pink toner falls from the tipped bottle, top-right, and lands in a glossy pink splash on a mirror-smooth pink surface, throwing up tiny crown droplets and clusters of small clear bubbles. THE SETTING: A seamless hot-pink-to-ballet-pink gradient background. THE LIGHT: Strong backlight from behind the splash making the liquid glow from within, plus a soft front fill; crisp specular points on every droplet. THE KEY DETAILS: Droplets frozen mid-air, perfectly round; bubbles clinging to the pooled liquid; the liquid is water-thin, clear pink. THE MOOD: Punchy-saturated pinks, glossy, sensual texture study. THE COMPOSITION: Square frame, the splash dominating the lower centre in extreme close-up, the bottle's tipped upper half entering soft-focus from the top-right corner. THE CAMERA: Macro commercial, 100mm macro, very shallow depth of field, high-speed freeze of the splash; slick product-film finish in the spirit of Fincher's precise control. THE LABEL: The bottle is secondary and soft; only the medicube wordmark need be recognisable.
Now look at the cap. It's closed, and the toner is pouring straight out of solid plastic. I asked for a tipped bottle and never said the cap was open, so the model kept it closed and poured anyway.
3. What I'm changing next time
I haven't rerun these yet, so treat this as my next test:
- Say the cap is open and where the liquid leaves the bottle, like "the flip cap is open and the stream comes out of the spout".
- Compare the thickness to something everyone knows, like "as thin as water", instead of saying what it shouldn't be.
Why it works
Here's my guess from just these two shots, so take it as a guess: the model nailed what liquid looks like, the gloss, the drops and the bubbles, and missed how it behaves, how thick it is and where it comes from. That's why next time I'm describing the behavior in plain physical terms instead of just the look.
Your turn: pick one product of yours that pours, drips or squeezes and write down how thick it is and where it comes out before you prompt it.
Emero remembers the product details you've already given it, like how runny your formula is, so you only explain it once, at cost.
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