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In partnership with

Be ready. Feel confident. Heal strong.

We are honored to partner with Living Beyond Breast Cancer charity to support breast cancer patients throughout their treatment journey with BLOOM⁴³.

BLOOM⁴³ is a prehabilitation and preconditioning platform for breast surgery patients that helps get surgery ready and lower the risk of complications, through the power of Supraphysiological Preconditioning™.

Enter for a chance to win!*

We are honored to partner with Living Beyond Breast Cancer charity to support patients throughout their breast cancer journey by providing treatment donations of BLOOM⁴³. Please complete the form below for a chance to receive a complimentary BLOOM⁴³ preconditioning treatment ahead of your breast surgery.

Please note:

  • Ten (10) winners will receive a BLOOM⁴³ preconditioning treatment at no cost, with a refundable deposit required ($200 for one device, $300 for bilateral).

  • Winners must obtain a valid prescription from their physician before ordering the BLOOM⁴³ medical device.

  • Contest opens January 12, 2026 and closes February 13, 2026.

  • Winners must have breast surgery scheduled after February 13, 2026 and provide a valid prescription from their physician.

  • Contest limited to residents of the continental United States, 18 years or older.

  • T&C apply: learn more

BLOOM⁴³: a platform to prehabilitate and precondition

Preparing for surgery is a powerful way of preventing complications.

Prevention means a better recovery, reduced hospital stay, quicker progression to additional essential planned treatments, and most importantly, getting back to the things that matter.

The BLOOM⁴³ platform combines our award-winning BLOOM⁴³ medical device with an evidence-based app designed to empower patients to prehabilitate and precondition prior to their breast surgery to prevent complications and optimize outcomes.

BLOOM⁴³ medical device: the key to preventing complications

BLOOM⁴³  is a drug-free, non-invasive wearable medical device for breast surgery patients.

Worn at home for three hours the night before surgery, it delivers ultra-precise Supraphysiological Preconditioning™ to boost blood flow, prime the skin and help lower the risk of post-operative complications such as skin necrosis.

BLOOM⁴³ is available to all breast surgery patients in the U.S. and requires a prescription from your doctor.

BLOOM⁴³ app: the key to Prehab™ & Rehab

The BLOOM⁴³ companion app is an evidence-based resource designed to support and empower anyone preparing for breast surgery.

With expert medical content, personalized Prehab™ and Rehab programs, and a supportive community, the app empowers patients to feel prepared, confident, and supported at every stage of their breast surgery journey.

0%

Found BLOOM⁴³ comfortable to wear and could easily continue their normal daily activities whilst using the device.

0%

Said BLOOM⁴³ helped them feel well-prepared for their surgery.

0%

Said BLOOM⁴³ gave them a sense of actively improving their chances of a successful surgery.

*BLOOM⁴³ early users program, 17 pilot participants

  • Prehab™ program

  • Non-invasive and drug free

  • Benefits proven in clinical trials*

    *Proof of concept trials

  • Designed for home use

  • Effective in a short timescale

  • HSA/FSA payment eligible

How Supraphysiological Preconditioning™ works

By harnessing the power of Supraphysiological Preconditioning™, the BLOOM⁴³ medical device triggers the release of protective Heat Shock Proteins (HSPs), including HSP-32, which induces the release of carbon monoxide in the local tissue- a powerful vasodilator and increases blood flow to the area. And better blood flow means better healing.

Prospective clinical trials* have demonstrated that Supraphysiological Preconditioning™ is a simple, non-invasive method that significantly reduces skin necrosis and shortens hospital stays following breast surgery.

50%
Reduced reoperation rates*
70%
Reduced outpatient follow up*
24%
Absolute Rick Reduction (ARR) of skin necrosis*
*Sources: “Local Heat Preconditioning in Skin Sparing Mastectomy: A Pilot Study”, Mehta S, Rolph R, Cornelius V et al., 2013; “A Randomised Controlled Feasibility Trial to Evaluate Local Heat Preconditioning on Wound Healing After Reconstructive Breast Surgery: The preHEAT Trial.”, Mehta S, Cro SC, Coomber B et al., 2019.
**Source: Mehta et al, 2013

How BLOOM⁴³ has helped patients

  • "It was great to feel that I was doing everything possible to ensure fast healing, and reduced pain and bruising, post procedure.”

    BLOOM⁴³ patient

  • “I am really happy I used the BLOOM⁴³ device. The difference in my healing and recovery between the biopsy (without BLOOM) and my surgery (with BLOOM) was like day and night.”

    BLOOM⁴³ patient

  • "Using BLOOM⁴³ was very easy and intuitive. It was comfortable to wear and easy to carry on doing things I needed the evening before surgery"

    BLOOM⁴³ patient

  • “I had a great experience with BLOOM⁴³! The ability to begin improving chances of surgery before the post-op recovery even starts is the biggest advantage

    BLOOM⁴³ patient

  • “I got a reduction mammoplasty and used the BLOOM⁴³ device prior to surgery. Preconditioning with BLOOM⁴³ helped me feel like I was getting a jump on the recovery and allowed me to have agency in setting myself up for the best possible outcome."

    BLOOM⁴³ patient

FAQ

  • BLOOM⁴³ is designed to be worn for 3 hours the night before surgery, pre-emptively priming your skin to get ready to heal. In clinical trials the effects of supraphysiological preconditioning™ have been shown to last many hours, with increased blood flow still seen hours after surgery.

  • To use BLOOM⁴³, you’ll need a prescription from your doctor. Here’s a prescription template your doctor can use. Once the prescription is completed, you can place your order directly through the BLOOM⁴³ app. If your doctor would like more information about BLOOM⁴³, please ask them to contact our clinical team at info@bloom43.com

  • BLOOM⁴³ is drug-free and non-invasive, ensuring no side effects or interference with treatment plans. This means additional procedures or treatments can proceed without delay. BLOOM⁴³ is even suitable for use by those who've had pre-operative radiotherapy. Ultra-precise, sensor-controlled, and a certified medical device BLOOM⁴³ gently preconditions the skin, without the risk of burns, offering safe and effective supraphysiological preconditioning™.

  • BLOOM⁴³ is a FDA registered, Class II medical device, having undergone the necessary certification processes meeting the standards required of medical devices. This certification ensures its safety and suitability for use in the context of preparation for surgery. The benefits of supraphysiological preconditioning™ have been shown in two clinical trials.

  • Preparing for surgery is a powerful way of preventing complications that might cause prolonged healing times, additional outpatient appointments or possibly even more surgery. BLOOM⁴³ works in harmony with your body, boosting its natural ability to respond to interventions, using the power of supraphysiological preconditioning™. This works by causing the release of naturally occurring heat-shock proteins, which protect our skin from the effects of surgery. They do this by improving the blood flow to the skin through the release of carbon monoxide, a potent vasodilator. The effect of better blood flow means more oxygen gets delivered to your skin. And better blood flow means better healing.

  • If you are planning to self-fund a BLOOM⁴³ treatment, below is a breakdown of the associated costs:

    • $750 for one device

    • $900 for two devices
      (Each device supports one breast, so bilateral surgery requires two.)

    A refundable deposit is also required:

    • $200 for one device

    • $300 for two devices

    The deposit is refunded once the device(s) are returned after surgery. 

    BLOOM⁴³ is also HSA/FSA eligible, which may help with payment if the patient has access to one of those accounts.

  • Shipping is typically quick—devices usually arrive within 2–3 business days, and we aim to ensure they reach the patient at least three days before surgery. If your surgery date is approaching soon, please contact our customer service team directly and let us know when it is scheduled, and we will personally manage the delivery to ensure the devices arrives on time.

  • BLOOM⁴³ is currently available for breast surgery patients in the U.S. market.

    Our team is working hard to make it available in other countries around the world.

  • Here’s the complete BLOOM⁴³ Instruction for Use manual