
Rob Carlin, managing director at Superior Wellness, partnered with TransformNow for a 30-day study in June 2023 to assess the benefits of using a Chill Tub before his daily workouts.
Before starting the study, Carlin traveled to TransformNow’s Birmingham office to measure the following body levels:
- Inflammation levels: C-reactive protein, Erythrocyte sedimentation rate and interleukin-6
- Testosterone levels: total testosterone test and free testosterone test
- Additional markers: cortisol levels, complete blood count, blood urea nitrogen and creatinine, liver function tests and lipid profile
- Subjective markers: energy levels, sleep quality and mood
- Bodyfat percentage
- Expiration lung volume test
Carlin’s journey was documented through regular updates on social media, and he had the same series of tests done with TransformNow at the end of the 30-day study to compare the results, which indicated his:
- Inflammation decreased 22% from 9.06 to 7.06 mg/L
- Interleukin-6 decreased from 4.6 to 3.2
- Testosterone levels increased by 16% from 12.20 to 14.20 nmol/L
- Cortisol levels were reduced by 24.9% from 533 to 400 nmol/L
- Rheumatoid factor decreased from <10 to 9.00
- Weight decreased from 170 pounds to 167 pounds
- BMI reduced from 23.4 to 22.9
- Body fat percentage reduced from 12.8% to 11.9%

Imran Kahn, founder and director of TransformNow, noted Carlin’s already lean body and regular workout routine resulted in only slight changes. Someone who doesn’t work out as regularly would likely see greater effects, he adds. While the 30-day study did show improvements for Carlin, it’s too short of a time frame to draw hard conclusions, Kahn says.
“The first few days were hard but once I got used to it, I was looking forward to using the Chill Tub,” Carlin says. “I suffer from poor circulation, and [it] definitely improved. I also felt it improved my mental health. I am continuing the ice bath journey and I am now a regular user of Chill Tubs.”
See more about Carlin’s journey at https://www.youtube.com/watch?v=majAIb_RQos&t=288s.