https://johsei-hp.jp/en/tags/skin-regeneration/Recent content in Skin-Regeneration on Johsei Clinic GuideHugo -- gohugo.ioenJohsei Clinic GuideWed, 27 May 2026 16:20:00 +0900https://johsei-hp.jp/en/beauty-salon/sleep-environment-and-bedding-tweaks-maintain-beautiful-skin/Wed, 27 May 2026 16:20:00 +0900https://johsei-hp.jp/en/beauty-salon/sleep-environment-and-bedding-tweaks-maintain-beautiful-skin/<img src="https://johsei-hp.jp/img/thumbnail/sleep-environment-and-bedding-tweaks-maintain-beautiful-skin-en.png" alt="Featured image of post Sleep Environment and Bedding Tweaks to Maintain Beautiful Skin" /><p>Sufficient sleep is essential for optimal skin cell renewal. Adjusting your pillowcase materials and maintaining proper bedroom humidity levels can improve skin condition overnight.</p> <h2 id="pillowcase-friction-and-hygiene">Pillowcase Friction and Hygiene </h2><p>Tossing and turning creates friction against your face. Choosing silk or soft cotton fabrics and washing covers frequently reduces bacterial buildup, helping prevent breakouts.</p> <h2 id="ideal-bedroom-conditions">Ideal Bedroom Conditions </h2><p>Keep your bedroom temperature between 18-22°C and humidity at 50-60%. Dry air depletes skin moisture overnight—use a humidifier or hang a damp towel to maintain levels. Pitch-black darkness supports melatonin and growth hormone production, which are essential for overnight skin repair.</p>