The Slugging (Petroleum Jelly Occlusion) Method

Slugging with Vaseline or Aquaphor locks in moisture by creating an impermeable barrier, boosting overnight hydration by up to 50% in clinical testing—outperforming #9 The French Pharmacy Ritual's water spritzes by trapping existing moisture rather than adding new. Dermatologists confirm 95% of users with dry skin see reduced transepidermal water loss within three days, but warn that the occlusion does not improve the skin barrier itself. For acne-prone individuals, this method can trigger 30% more breakouts than the average lightweight gel moisturizer. The viral Reddit trend omits proper patch testing: one-eight-inch layer suffices, yet overuse multiplies clogged pore risk. Interestingly, comparing raw cost, Vaseline runs $0.80 per ounce versus Bioderma's $45, but the ritual lacks any active ingredients for collagen or pigmentation. Best reserved for cold, dry nights, slugging excels at recovery but earns its low rank due to limited versatility. For combination skin, a targeted eye occlusion method outperforms full-face application by reducing irritation potential. Ultimately, this ranked 10th because its one-trick appeal fails against more comprehensive routines.