Guerlain cosmetics. ORCHIDEE IMPERIALE Concentrate Serum. Preventing the signs of aging is now possible with this concentrated serum formulated with extracts of orchid imperial attacking the signs of aging by rejuvenating the skin instantly. Densifies, evens and tenses the complexion. Apply a small amount of product in circular movements all over the face, mainly pressing the anchorage zones of the facial muscles to strengthen them.