Clinically proven results
NATTCOLLAGEN™ has been independently tested and verified both in dermatological testing as well as in lab testing. It was rated 5 star for skin-friendliness. NATTCOLLAGEN™ is a significantly better choice for skin hydration than cotton:
- +40% skin hydration after four weeks
- +12% smoother skin, clinically measured
- Dermatest 5-star seal for skin friendliness
- 100% would recommend Night Renew
Clinically tested and verified
NATTCOLLAGEN™ has been awarded the 5-star Dermatest® seal by Dermatest®, an independent dermatological testing institute based in Münster, Germany.
This highest rating is granted only after successful long-term application studies, confirming excellent skin compatibility, maximum skin safety, and compliance with strict clinical testing standards.
Recommended by dermatologists
“Nighttime is when our skin’s natural regeneration processes are most active, making it the ideal moment to support hydration and renewal.
In a clinical and dermatological study, participants wearing NATTCOLLAGEN™ sleepwear showed a significant increase in skin hydration (+40%) and improved skin refinement (pores), as confirmed by corneometry and Antera 3D measurements. The products were awarded the Dermatest 5-star seal for skin friendliness, underlining their excellent compatibility and efficacy."
Dr. med. Werner Voss — Specialist in Dermatology Signature Venereology, Allergology, Phlebology and Environmental Medicine
Dermatologically tested for superior skin comfort
NATTCOLLAGEN™ fabric has been dermatologically and clinically tested by Dermatest® in a controlled 4-week wear study. 20 women and men aged 35 and over wore NATTCOLLAGEN™ nightwear every night, with skin measurements taken before and after the test period.
The results were clear: NATTCOLLAGEN™ delivered +40% higher skin hydration and +12% smoother skin texture, measured using corneometry and Antera 3D analysis. The fabric was awarded the Dermatest® 5-star seal for skin friendliness, with 100% of participants reporting no irritation or friction and 95% rating skin friendliness as excellent.
These findings confirm that NATTCOLLAGEN™ is exceptionally gentle on the skin, supports overnight hydration, and is designed to enhance skin comfort and restorative sleep.
Reference: Dermatest GmbH – Clinical dermatological application study
Laboratory testing
The thermoregulating performance of NATTCOLLAGEN™ fabric has been independently verified through both flat testing and torso testing by Empa – the Swiss Federal Laboratories for Materials Testing and Research. When compared with cotton and a wide range of other fabric compositions, NATTCOLLAGEN™ demonstrated exceptional breathability, performing up to 12 times more breathable than cotton, helping to regulate body temperature and enhance all-night comfort.
The best pajamas for skin renewal
-
★★★★★
“My skin felt more hydrated and smoother after just weeks“
— Test participant —
-
★★★★★
"The fabric is super soft and light feels great against the skin. You can hardly feel that you are wearing anything. Even the seams are barely noticable."
— Test participant —
