--- product_id: 28361109 title: "PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4\" x 5\", Pack of 24" price: "£31.02" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/28361109-php-45-instant-heat-pack-for-emergency-heat-therapy-4 store_origin: GB region: United Kingdom --- # 30+ mins long-lasting warmth Compact & travel-ready Instant heat in 4 mins PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 **Price:** £31.02 **Availability:** ✅ In Stock ## Summary > 🔥 Heat Therapy, Anytime, Anywhere — Don’t Get Left in the Cold! ## Quick Answers - **What is this?** PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 - **How much does it cost?** £31.02 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/28361109-php-45-instant-heat-pack-for-emergency-heat-therapy-4) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Pain Solution:** Effective for joint, back, neck pain, and menstrual cramps—your all-in-one heat therapy. - • **Ultra-Portable Power:** Lightweight 4x5 inch packs fit effortlessly in any emergency kit or backpack. - • **Effortless Activation:** Simply squeeze to trigger a safe chemical reaction—no heating devices needed. - • **Rapid Relief On Demand:** Activates heat in just 4 minutes—no waiting, no fuss. - • **Sustained Soothing Warmth:** Keeps you comfortable for over 30 minutes of continuous heat therapy. ## Overview The PrimaCare PHP-45 Instant Heat Pack delivers fast-acting heat therapy by activating a chemical reaction within 4 minutes, reaching up to 60°C (140°F). Each lightweight, disposable pack provides over 30 minutes of soothing warmth, ideal for emergency pain relief on-the-go. Compact and portable, these 4x5 inch packs come in a convenient 24-pack, perfect for first aid kits, travel, and outdoor adventures. ## Description Product Description Heat continues to be a crucial agent in healing. This old remedy just got a better way of administration with our Primacare instant heat packs. This hot packs form an essential part of any emergency kit whether for use at home, when outdoors or even in your car when traveling. Our emergency heat packs are easy to use and you will not require any medical background to put them to use. Simply squeeze with your fingers and press against the target area of the body where you would like the heat therapy applied and see positive relief in a short while. We make these disposable instant heating packs to be one-time use for more convenience when treating several victims of an accident. The portable medical heat packs also come with a non-woven cover that makes it easier to handle them when offering the heat therapy to an accident victim. These medical grade heat packs are suitable for use on multiple types of pain that the body experiences. They come in a convenient package that contains 24 pieces of these 4x5Inch emergency disposable heat packs. You will be able to carry them hassle-free in your back pack or several pieces in your pocket. Manufacturer Contact Information 9084867050 Review: The heat is on.... - These little packs get super hot so the sleeve provided is necessary. Even with the sleeve, it's still a lil too hot. Need them after UFE procedure and it really helps with cramping. Not sure how long the heat lasts since I just started. Review: Almost Impossible to activate - I got this because I wanted to use it to relieve my menstrual cramps. First, the size was misrepresented because I thought it was bigger. Most importantly, it was extremely difficult to pop and activate the heat pack. I squeezed for a long time and was only able to pop 2. I had to order a different one even though I had about 20 unused packs left. Definitely a waste of my money! ## Features - EASY ACTIVATION – WATCH BEFORE USE: Please check out the product video for a simple demonstration on how to activate the hot pack correctly for best results. - FAST HEAT ACTIVATION: Self-heating pack activates in approximately 4 minutes through a safe internal chemical reaction, reaching up to 60°C (140°F) for consistent warmth. - EXTENDED WARMTH DURATION: Designed to provide steady heat for a minimum of 30 minutes, offering reliable and continuous comfort during use. - COMPACT & PORTABLE: Lightweight, single-use design makes it easy to store in first aid kits, travel bags, backpacks, or emergency supplies without taking up much space. - VERSATILE WARMING USE: Suitable for general external use to help provide soothing warmth for everyday muscle stiffness, minor aches, and outdoor cold-weather situations such as hiking or camping. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 3.8 out of 5 stars 1,526 Reviews | ## Images ![PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 - Image 1](https://m.media-amazon.com/images/I/71Isy5s8RzL.jpg) ![PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 - Image 2](https://m.media-amazon.com/images/I/71VQj6fj0jS.jpg) ![PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 - Image 3](https://m.media-amazon.com/images/I/61VXtFaZ3NS.jpg) ![PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 - Image 4](https://m.media-amazon.com/images/I/61wf2h0OXiS.jpg) ![PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 - Image 5](https://m.media-amazon.com/images/I/81iyVVT1gfL.jpg) ## Questions & Answers **Q: do they smell ?** A: No. Unless It is on something that responds to heat. Like essential oils. Nut if you secured it and went out, ou won’t smell like mentholated heat rub or vicks or icey hot stuff **Q: How hot (in F or C) do these get?** A: Not very hot, comfortable **Q: How much liquid is inside (are they TSA compliant)?** A: There is no liquid so I believe it is compliant. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The heat is on.... *by B***O on June 7, 2025* These little packs get super hot so the sleeve provided is necessary. Even with the sleeve, it's still a lil too hot. Need them after UFE procedure and it really helps with cramping. Not sure how long the heat lasts since I just started. ### ⭐⭐⭐⭐⭐ Almost Impossible to activate *by T***E on April 30, 2023* I got this because I wanted to use it to relieve my menstrual cramps. First, the size was misrepresented because I thought it was bigger. Most importantly, it was extremely difficult to pop and activate the heat pack. I squeezed for a long time and was only able to pop 2. I had to order a different one even though I had about 20 unused packs left. Definitely a waste of my money! ### ⭐ TWO WORDS: DON’T BUY, not as described and not warm enough to help! *by D***M on April 10, 2026* Simple first comment: THIS IS A NO BUY RECOMMENDATION! Let me explain why you should keep looking for other solutions. First, they are almost impossible to activate, as many reviews already mentioned. Pack says squeeze here to activate, nope doesn’t work. I had to take a heavy bottle to pound on the pack to activate it. Why should it be so difficult? Second, I needed a pack for me irritated eye. Dr told me not like a barber’s towel but not so cool you don’t even feel it. Well, after the tough chore of activating it, the middle of the pack was 104 degrees. Sounds great right? No way, it’s just slightly warm affording no real heat to my eye. There are other self heating packs like hand warmers, but NO, they get way too hot for your face and can cause burns! So, my questions moving onward, attempting to fund a viable solution. Trying microwave packs next, but like many of us, I don’t want to leave the bedroom to go to the kitchen to heat up a pack. I want to be in bed, open one and use it immediately. As I said, I’m searching to find a more viable solution for more of you are not disappointed like I was. Will update my review when I’ve located a good product that meets my needs! ## Frequently Bought Together - PrimaCare PHP-45 Instant Heat Pack for Emergency Heat Therapy, 4" x 5", Pack of 24 - 25 Pack - Instant Cold Packs - Instant Ice Packs for Injuries | Disposable Cold Compress Ice Pack for Pain Relief, Swelling, Inflammation, Sprains, Toothache - Cold Pack for Athletes --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/28361109-php-45-instant-heat-pack-for-emergency-heat-therapy-4](https://www.desertcart.co.uk/products/28361109-php-45-instant-heat-pack-for-emergency-heat-therapy-4) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*