
Slugging, Skin Cycling & Serums: Are the Latest Skincare Trends Worth the Hype?

With TikTok influencers and YouTube dermatology “gurus” flooding your feed, it’s hard to know which skincare trends are truly effective—and which are just hype. At Foxhall Dermatology, we believe in evidence-based care with a modern twist. Today, we’re breaking down some of the most popular skincare trends of 2025 and explaining whether they’re safe, smart, and suitable for your skin.
1. Skin Cycling: A Smarter Way to Use Actives?
What It Is: Skin cycling refers to rotating your nighttime routine over several days—typically exfoliation on Day 1, retinol on Day 2, and recovery (hydration-focused) on Days 3 and 4.
Dermatologist Take: This method can reduce irritation from retinoids and acids, especially for sensitive skin or those just starting a medical-grade skincare routine. It mirrors what we often recommend in clinic: balance actives with barrier repair.
✅ Worth trying—especially if your skin feels dry, red, or reactive.
2. Slugging: Vaseline to the Rescue?
What It Is: Slugging is the practice of applying a petrolatum-based product (like Vaseline or Aquaphor) over your entire face at night to lock in moisture.
Dermatologist Take: For eczema, dry skin, or post-procedure recovery, occlusion can be healing. But for acne-prone or oily skin types, this may lead to clogged pores.
⚠️ Use sparingly or only in colder months—ask us before making it a habit.
3. Peptide Serums: Miracle or Marketing?
What They Are: Peptides are amino acid chains that claim to stimulate collagen, improve elasticity, and reduce fine lines.
Dermatologist Take: Clinical studies support some peptides (like copper peptides and matrixyl), but not all serums are created equal. Medical-grade formulations often have better delivery systems and real results.
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4. “Glass Skin” and “Dolphin Skin”: Realistic Goals or Filters in a Bottle?
What It Is: These trends aim for ultra-smooth, luminous, poreless skin using exfoliants, serums, and highlighters.
Dermatologist Take: While healthy skin does glow, remember that real skin has texture, pores, and fluctuations. The key to radiant skin isn’t perfection—it’s protection, hydration, and smart skincare.
✨ Try gentle exfoliation, antioxidants, and broad-spectrum sunscreen daily.
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