Background
Crush to pure black — no gray zones
The background should already be near-black from the dark room. In post, use Curves to set the black point precisely — pull the darkest area to pure black (#000000). Any gray in the background reads as a mistake. Check at 100% zoom for any light spill near the product edges.
Edge Highlights
Protect the rim — don't blow it out
The left edge highlight should be bright but not pure white — it should retain just enough texture to read as a cylinder edge, not a flat white stripe. Use Highlight recovery or a luminance mask to protect the specular rim from clipping. A slightly blown edge looks like a stick, not a tube.
Label Retouching
Dodge white text, enhance gold foil
The white logo and text may appear slightly gray on the dark tube under studio light. Dodge carefully to bring white text to 90–95% white. For the gold foil text, add a selective Hue/Saturation adjustment to slightly boost yellow/gold saturation — this makes the foil pop without affecting the black tube body.
The Comparison Composite
Align all three states precisely
For the State 1 / State 2 / State 3 comparison frame (like Images 16–17), layer all three frames in Photoshop and use the tube's position to align each layer. Add text labels. Keep the background pure black so the composite reads as seamless. Export as a vertical crop for social media formats.