Shampoo with pair oil

This is not a dish but a relaxing hair-washing service at a massage parlor, which uses nourishing oils (typically coconut oil, argan oil, or herbal essential oils) applied to the hair and scalp combined with massage techniques. "Dầu cặp" may be an abbreviation or misspelling of "dầu gấc" (an orange-red oil extracted from gac fruit, rich in vitamins and beneficial for hair) or it may refer to using a pair of oils for hair care. Guests lie down or recline while the technician massages the scalp, shoulders, and neck, then rinses with shampoo, leaving you feeling relaxed with soft, smooth hair.