a close-up of a blue serum flask reflects a rainbow on a dark background. a mockup of a cosmetic product. a glass bottle with a

serum bottle essence mockup cosmetic product reflection rainbow clean modern glass liquid dropper shine glow blue container elegant aesthetic packaging skincare luxury design transparency wellness moisturizing woman healthy skin facial whitening hyaluronic acid antiaging fullerene vitamin vitality rejuvenation dermatology cosmetology strengthening nourishing beautician hygiene wellbeing improvement protection oil extract peptide close-up flask reflects dark background product pipette skin copy space