Comparing the two fragrances…

Korres

Plinsky
Black Pepper
Black Flash
Shared character
Both Black Pepper and Black Flash feature notes of lemon, pink pepper, and lavender, resulting in shared accords of citrus, woody, aromatic, fresh spicy, and lavender.
How they differ
Black Pepper contains notes of musk, amber, cardamom, patchouli, birch, apple, black pepper, melon, pear, lime, cashmere wood, orange, cedar, mandarin orange, woods, marine notes, Provençal lavender, and sea notes, which contribute spicy, aquatic, fresh, powdery, amber, and musky accords. In contrast, Black Flash includes jasmine, bergamot, grapefruit, vetiver, galbanum, tangerine, petitgrain, and moss, creating green, herbal, and soft spicy accords.
Who each suits
Black Pepper suits those who prefer spicy, aquatic, and powdery profiles with woody and musky elements. Black Flash suits those who prefer green, herbal, and soft spicy profiles.
Only in Black Flash