Get A Free Care Pack With Every Kegel8 Unit - No Code Required. AND Get A Free Target Gold Probe With All V For Men - No Code Required.
Offers valid until 31/05/2022. Cannot be used with any other offer. Exclusions Apply


Osalis Magnesium 300mg Supplement

Osalis Magnesium 300mg Supplement 2 4.5 5 1
Special Price £8.49 Regular Price £9.99 Save: £1.50 (15%)
In stock
Key Features
  1. 80% of us are deficient in Magnesium, helps relieve pelvic pain & ease pelvic floor pressure
  2. Magnesium is more effective than laxatives in treating constipation, less pressure on pelvic floor
  3. Better bladder control, relaxes muscles spasms which create urge and overflow incontinence
  4. Magnesium relieves stress and anxiety associated with pelvic floor pain disorders
  5. Magnesium eases premenstrual syndrome symptoms, take 1 tablet daily



Magnesium – the miracle mineral needed by every cell in our body – if you buy one supplement, this really should be it!

Magnesium is one of the most important minerals in the body and amazingly 80% of us are thought to be magnesium deficient. Whilst you might eat a balanced diet research shows that magnesium levels are dropping in the food we eat. Genetically modified foodstuffs (GMO) and intense farming together with processed and fast food are all thought to be to blame as well as digestive conditions such as leaky gut and medications fighting chronic diseases because they inhibit the absorption of magnesium by the gut.

Do you suffer with leg cramps? Anxiety? Insomnia? Fatigue? Migraine? Osteoporosis? High Blood Pressure? Type II Diabetes? Magnesium is needed by every cell in our body and the catalogue of destruction that magnesium deficiency leaves also takes its toll on your pelvic floor.

I eat healthily – why should I use a Magnesium supplement? Here at Kegel8 we’re talking Optimum Pelvic Health

Thankfully our life expectancy is increasing but shockingly our ‘healthy’ life expectancy isn’t. We know to have a healthy pelvic floor many of us need to eat less of the wrong food (processed, carbohydrates, and fatty foods especially) and more nutrient dense foods to FEED our bodies – until that happens we recommend supplementing with these vital pelvic floor-friendly supplements. What our researchers have discovered is that a problem with the pelvic floor and pelvic floor problems could be due to a vitamin and mineral deficiency as you’ll see evidenced in clinical papers below.

Osalis Magnesium for Pelvic Floor Muscle Exercises

Kegel8 wants you to have a strong and healthy pelvic floor, one that is pain free and fully functional as you navigate the other challenges of getting older. Optimum pelvic floor health together with urinary and colon control boosts our quality of life helping us face the challenges that come our way. To get the balance right and to strengthen the pelvic floor muscles we urge you to look at pelvic floor muscle exercise as just one part of the equation. Your weight, posture, lifestyle, pelvic floor muscle exercise and optimal pelvic floor nutrition are all essential areas to ‘tweak’ to help you stay healthy and in total control. The Osalis specialist range of vitamin and mineral supplements have been created to go hand-in-hand with pelvic floor exercises – so that every kegel ‘squeeze and lift’ delivers the most effective results.

By supplementing to make sure your muscles, ligaments and fibres are in the best shape possible nutritionally – you’ll be guaranteed to get the best results. By now, I am sure you’ll know that we ask you to commit to a 12-week programme of pelvic floor exercising to get the best results (which will incidentally last you for years!). This magnesium supplement comes in a 3 month course to stock you up for a while.

supplementing with magnesium over 3 months can add muscle mass and decrease fat

"For any woman with symptoms of pelvic pain and/or constipation, supplementing with magnesium is essential. I was amazed to link my insomnia with a lack of this mineral and after 3 weeks I was back sleeping like a baby!."

Stephanie Taylor - Founder

Kegel8 recommends you consider supplementing with Magnesium for following reasons:

Consider Magnesium for Pelvic Pain & Vulvodynia ✔

  • Magnesium is vital to produce the happy-hormone serotonin. Certain hormone production managed by magnesium works to calm the brain and promote relaxation - sleeplessness and insomnia is an indicator of magnesium deficiency.
  • When it is used appropriately to enhance analgesia (pain relief) and muscle relaxation in surgical patients, it can contribute to improvement in the outcome of surgical patients. [1]
  • Many women with vulvodynia lack essential nutrients for the vulvar, vaginal, and pelvic tissues to function optimally. Vitamin D, omega-3 fatty acid, other antioxidants, B vitamin, and magnesium deficiencies commonly show up. [2]

Consider Magnesium for Premenstrual Syndrome (PMS) ✔

  • The University of Maryland Medical Center reports that scientific studies suggest magnesium supplements may help to relieve symptoms associated with PMS, particularly: bloating, insomnia, leg swelling, weight gain and breast tenderness.[3]

Consider Magnesium if you have Urge Incontinence (UI) and Overflow Incontinence ✔

  • The detrusor muscle is a smooth muscle found in the wall of the bladder. Detrusor overactivity means that this muscle contracts when you don't want it to, this can cause urge incontinence and overflow incontinence. Magnesium decreases the excessive amount of nerve stimulation within the nervous system and supplementing with Magnesium could help to relax the detrusor smooth muscle. A double-blind trial found that women who took 350 mg of magnesium hydroxide (providing 147 mg elemental magnesium) twice daily for four weeks, had better bladder control and fewer symptoms than women who took a placebo. [4]

Consider Magnesium to treat Constipation and for Pelvic Floor Strengthening ✔

  • Constipation is not just uncomfortable, it is responsible for a lot of pelvic organ prolapses too, please do all you can to stop straining. This study indicated magnesium hydroxide to be more efficient than bulk-laxative in treating constipation in elderly long-stay patients. (5) Not only is constipation detrimental for the pelvic floor due to the constant straining to have a bowel movement, but the weight and discomfort of a full bowel resting and dragging on weakened pelvic floor muscles and fascia is also harmful. [5]
  • Magnesium will help constipation! By relaxing muscles and neutralising stomach acid it helps speed the passage of waste through the intestines. Researchers in Tokyo found a significant increase in constipation when they researched 3,800 women with low magnesium levels. (6) Supplementing with magnesium should help you go to the toilet easily, however if it has an adverse laxative effect if the dose is too high which is counterproductive for a healthy pelvic floor. [6]

Consider Magnesium if your pelvic floor problems make you anxious and cause you stress ✔

  • This data supports a relationship between low Magnesium (Mg2+) levels and both anxiety-related behaviour and a modulated stress axis. [7]


  1. Magnesium: a versatile drug for anesthesiologists
  2. Stephanie Yeagar’s with Dr Jessica Drummond. 6 Steps to Take If You Have Vulvodynia.
  3. University of Maryland Medical Center Magnesium
  4. Gordon D, Groutz A, Ascher-Landsberg J, et al. Double-blind, placebo-controlled study of magnesium hydroxide for treatment of sensory urgency and detrusor instability: preliminary results. Br J Obstet Gynaecol 1998;105:667–9.
  5. Constipation in elderly long-stay patients: its treatment by magnesium hydroxide and bulk-laxative.
  6. Association between dietary fiber, water and magnesium intake and functional constipation among young Japanese women.
  7. Magnesium deficiency induces anxiety and HPA axis dysregulation: Modulation by therapeutic drug treatment

Kegel8 Supplements Information

Nutritional Information:

  • Vegetarian ✔
  • Vegan ✔
  • Gluten Free ✔
  • Yeast Free ✔
  • Lactose Free ✔
  • No Artificial Colours ✔
  • No Artificial Preservatives ✔
  • Egg Free ✔
  • Nut Free ✔
  • Fish Free ✔
  • Porcine Free ✔
  • Alcohol Free ✔
  • Soya Free ✔
  • Sweetener Free ✔
  • Hormone Free ✔

Advisory information:

Food supplements must not be used instead of a varied and balanced diet and a healthy lifestyle. Please consult a doctor or healthcare professional before use, especially if you are already under medical supervision, taking any medications, pregnant or breastfeeding. Stop use immediately and consult a doctor if you have any adverse reactions. Keep out of reach of children. Supplements should be stored in a cool and dry place and should never be used if the seal on the packaging is damaged or missing. For directions for use, please refer to the instructions on the packaging.

Always remember:

Whilst we make every effort to ensure product information is up to date on our website, please always read labels, warning and directions provided with the product before using or consuming the product.

More Information
IngredientsMagnesium oxide, bulking agent: microcrystalline cellulose, maltodextrin, modified maize starch, anti-caking agent: magnesium stearate
Recommended ForPelvic pain, urge incontinence, symptoms of PMS, treating constipation and taking pressure off a weak pelvic floor by preventing straining and constipation.
Can be used withSupplement for better health and overall improvement of pelvic health. Use with all Kegel8 Pelvic Toners, Vaginal Weights & Cones
Included Contents90 tablets, 3 months supply.
User Manual

For Instructions for use, please click here (12174)


DosageOne tablet per day. Recommended for adults and children over the age of 12. Do not exceed the recommended daily intake.


Royal Mail 48 - 3-5 working days £3.99
Royal Mail 24 - 95% arrive next day (Including Saturday) £5.99
DPD - Choose Your Day - Guaranteed nominated day delivery (Monday - Sunday) £7.99
Royal Mail Special Delivery By 1pm - Named day or next day guaranteed by 1pm (Including Saturday) £7.99
Royal Mail Special Delivery By 9am - Named day or next day guaranteed by 9am (Including Saturday) £17.99
International Delivery from £8.99

Same Day Dispatch

Are you ready to start your Kegel8 journey to a stronger pelvic floor right now?
Order before 3.45pm Monday to Friday and your order will be dispatched the very same day.

Discreet Packaging

As some of our products are of an intimate nature. Rest assured that no one, other than you, will know what is contained in your delivery. We use plain brown, unbranded, boxes. Keeping the contents secure and private.

Free Returns

If you're not 100% happy with your purchase and you have not opened or used any of the intimate products, and everything is in a re-saleable condition, you can return them for FREE within 14 days of delivery to get a full refund.
Speak to our Customer Care team if you have any questions.

Our Kegel8 Experts Are Here to Help

If you have any questions about our products or your pelvic floor, please pick up the phone and speak to one of our Kegel8 experts. Our Customer Care team have over 10 years of customer service experience, helping you make the best decision when it comes to your intimate health.

Call us on 01482 496932. Our Customer Care line is open 8.00am - 6.00pm GMT, Monday to Friday, 9.00am - 3.00pm GMT, Saturday.

If phone calls aren't for you, then our live chat is also available on our website 8.00am - 6.00pm GMT, Monday to Friday, 9.00am - 3.30pm GMT, Saturday. Or visit our contact us page to use our contact us form or email.

Have you already brought from us?
We're still here to help! Let us know how we can help and we will endeavour to answer any questions you may have.

We Are Environmentally Friendly

The cardboard boxes we use to deliver your goods are made of over 70% recycled materials, the rest is made from pure Kraft from managed sources. Please recycle our packaging to continue the cycle.

We found other products you might like!