The best for your bone and joint.

A multi-mineral supplement with fish collagen, botanical extracts and vitamin D3.

160.00 £  for 4 bottles

15ml daily

This product is deal for anyone who suffers from problems with their muscles, joints, experiences physical or mental fatigue.

The Onyx Plus Flexi formula contains important minerals and other nutrients that are essential for the proper functioning of our bodies - these being magnesium (Mg), calcium (Ca), hydrolyzed fish collagen, vitamin D3 and sodium hyaluronate. It also contains quality herbal extracts such as Bowsellia serrata, Herpagofyt and White willow.

The benefits of using Onyx Plus Flexi?
Let's start with magnesium and its importance to the human body. Magnesium is an element that can primarily be found inside the cell, where it occurs in 10 to 15 times higher concentrations than in blood serum. Magnesium plays an active role in approximately 330 metabolic reactions and 2500 chemical reactions in the body.

The most common symptoms of magnesium deficiency include:

  • Rapid fatigue, frequent headaches, difficulty with concentration
  • Insomnia and morning fatigue
  • Greater susceptibility to stress and depression
  • Rapid heartbeat
  • Twitching of eyelids
  • Muscle cramps, spasms, twitching
  • Hair loss, brittle nails and hair

A lack of magnesiumis documented in a broad spectrum of conditions including civilization diseases such as high blood pressure, diabetes, liver cirrhosis, and chronic degenerative diseases. Members of the elderly population are often found to suffer from low levels of magnesium. 

Five general functions of magnesium:

  1. Catalyzes most of the chemical reactions in the body
  2. Produces and distributes energy to the body
  3. Participates in protein synthesis
  4. Transmits nerve signals
  5. Releases muscles

Let’s look at calcium next. It is essential for the proper formation of the teeth and bones, it helps to neutralize the internal body environment, and helps to conduct nerve impulses. Together with magnesium, calcium helps muscle contraction and finally to neutralize lactic acid in case of physical activity.

Hydrolyzed fish collagen is a scleroprotein - an extracellular, water-insoluble protein and the primary building block of connective tissues. It makes up 25-30% of all proteins in the body of mammals, and in the form of collagen fibers it is a component of extracellular mass. It is responsible for the elasticity, firmness, proper wetting of the skin and the continuous immersion of skin cells. Collagen deficiency occurs as a result of aging, thus resulting in the formation of wrinkles. Its use and significance is growing mainly among athletes and people that undergo physical stress, and emphasis is placed on good absorption rates and high quality of collagen proteins. The most common use of collagen proteins is in preventing locomotor disorders and in the aftercare in cases of injury. In combination with small amounts of B vitamins and minerals (Mg, Ca), hydrolysed collagen is successfully used as a remedy to cure or relieve bone and joint diseases such as arthritis and osteoporosis.

Vitamin D3Experts have published thousands of studies on the positive effects of vitamin D on the human body. Vitamin D helps to maintain good health, strengthens immunity and bones, and reduces the risk of both common and chronic illnesses by up to 60%. Still, the majority of the human population suffers from vitamin D deficiency and often overlooks this problem. According to research published in the European Journal of Clinical Nutrition, vitamin D deficiency may account for more than half of all deaths in the world. Medical professionals point out that this super-vitamin has a great influence or that it can either prevent or at least reduce the risk of a number of serious illnesses including cardiovascular disease and cancer. Vitamin D also helps prevent multiple sclerosis and diabetes. Vitamin D deficiency is referred to as a modern epidemic and experts see dietary supplementation as a leading solution.

Sodium hyaluronate belongs to the group of naturally occurring polysaccharides. It is highly viscous and makes the perfect lubricant. Its presence in the synovial (joint) fluid allows for the smooth gliding of joint heads. At the same time, it can bind large amounts of water, giving the body tissue a damp environment that is necessary for cell regeneration and thus ensuring easier healing of damaged tissue. It also has an analgesic effect.

The most common occurring joint disease especially in the elderly population is osteoarthritis. The origin and the development of this disease is governed by a number of factors.

Besides congenital factors, other factors include minor and major injuries, the excessive wear of joints, bad nutrition, etc. However not only this demographic is threatened by ostearthrosis, people with minimal physical activity may sooner or later develop the same problems as they lack bone remodeling and adequate cartilage massage associated with sensible physical activity. Similarly, overweight people will be affected due to the overuse and excessive strain on joint cartilage.
Ingredients: Water, Hydrolyzed fish collagen, Magnesium - magnesium lactate /magnesium gluconate, Calcium - calcium lactate /calcium gluconate, Citric acid as acidity regulator, Potassium sorbate as preservative, Elderberry fruit extract, Sodium hyaluronate, Boswellia serrata (Olibanum indicum) extract, Devil's claw (Harpagophytum procumbens) extract, White willow (Salix alba) extract,Vitamin D - cholecalciferol.

Recommended daily dosage: adults take 15 ml (1/2 of cap) daily.

Do not exceed the recommended dose.

Nutritional facts:
15 ml - 1 dose
100 ml
00 kJ / 00 kcal
00 kJ / 00 kcal
0 g
0 g
- trans Fat
0 g
0 g
0 g
0 g
- sugar
0 g
0 g
0 g
0 g
0 g
0 g
Hydrolyzed fish collagen
1 200 mg
8 000 mg
200 mg = 53 %*
1 333 mg = 355 %

100 mg = 12 %
667 mg = 83 %
Sodium hyaluronate
12 mg
80 mg
Boswellia serrata exract
10 mg
67 mg
Devil´s claw extract
6 mg
40 mg
White willow extract
0,45 mg
3 mg
Vitamin D3
25 µg = 500 %*
167 µg = 3340 %*
* (RI – Reference Intake)

Recommended use: Shake well before using. Take several hours before or after taking medicines. Do not use if you are sensitive to any ingredient used. Store in a dry place at a temperature below 25°C and away from direct sunlight. Do not freeze. Once opened, store in the refrigerator and use within one month of opening.

Safety Warning: Product does not replace a healthy balanced diet. Not intended for children, pregnant and breastfeeding women. Keep out of reach of children. This product has been securely sealed for your protection - do not use if the seal has been broken. The manufacturer is not liable for any damage caused by improper use or storage.

Quality control and ingredient purity:

Akuna Health Products Inc. is ISO and GMP certified manufacturer, ensuring the highest quality standards. We use only ecologically sourced ingredients. All individual extracts as well as our final products are continually tested and analysed in our accredited laboratory in Canada.

Box contains: 4 bottles (1 bottle = 480 ml)

Dr. Jaromir Bertlik, N.D., Chairman of the Akuna Scientific Advisory Board:

"I cannot stress the fact enough that at present, the general population does not have a sufficient nutrient intake and therefore it is essential to use quality food supplements daily. Onyx Plus Flexi is a unique, extraordinary supplement that contains the most stable form of minerals with a wide range of efficacy on the whole body. Defend yourself against disease by taking preventive measures that will prolong your quality of life."

Herbal extracts in ONYX PLUS Flexi: 

Boswellia serratais

most commonly used in the prevention and treatment of arthrosis. Boswellia is also effective in the treatment of inflammation and swelling in cases of arthrosis and arthritis. Boswellic acid belongs to a group of substances that can suppress the growth of certain [type]s of tumors. Due to its strong anti-inflammatory effects, it is also very effective in treating inflammatory bowel diseases such as ulcerative colitis and Crohn's disease. It reduces blood cholesterol levels by as much as 48%, and research has confirmed the effect of cedar resin on asthma. Boswellia is used in traditional phytotherapy for memory disorders and its positive effect on brain function is confirmed by modern research. It can, for example, effectively protect brain cells from stroke. Boswellic acid improves the elasticity of the skin, improves its protection from external factors and slows the aging process.

Harpagophytum procumbens

or devil’s claw has secondary roots, called tubers that grow out of the main roots. The main roots contain most of the active substances, whose medicinal properties effectively prevent further degeneration of damaged joints and spine. Devil’s claw relieves pain, soothes inflammation and promotes healing. It is also recommended for athletes, experiencing joint pain and strained tendons after strenuous physical activity.

Salix alba

or white willow- the extract from white willow bark has antipyretic and analgesic effects and it can inhibit the multiplication of certain microorganisms. It is used for gout or rhermatic diseases as well as some [type]s of skin disease.