Vitamin C consists of a water-soluble vitamin known as vitamin C. Vitamin C is also known as L-ascorbic acid or ascorbate.  It occurs as a white or slightly yellow crystal or powder with a slightly acidic taste. On exposure to light, it gradually darkens. In the dry state, it is reasonably stable in air, but in solution, it rapidly oxidizes.

• Vitamin C helps in the growth and repair of tissues of bones, cartilage, tendons, skin, hair, muscles and many more.
• Along with that, it helps in wound healing and also enhances the absorption of iron in our body.
• Excess of free radicals can speed up the ageing process, vitamin C due to its rich antioxidant properties help to reduce the harmful effects of these free radicals. Vitamin C is very crucial for bone and teeth health.
• It improves vision and also regulates blood cholesterol levels.
• Owing to its numerous benefits, it is very important to take an adequate amount of vitamin C in your diet.

Possibly Effective for

• An eye disease that leads to vision loss in older adults (age-related macular degeneration or AMD).
• Irregular heartbeat (atrial fibrillation). Taking vitamin C before and for a few days after heart surgery helps prevent irregular heartbeat after heart surgery.
• Emptying the colon before a colonoscopy.
• Limb pain that usually occurs after an injury (complex regional pain syndrome). 
• Skin redness caused by injury or irritation (erythema). Using a skin cream containing vitamin C might decrease skin redness following laser resurfacing for scar and wrinkle removal.
• Airway infections caused by exercise. Using vitamin C before heavy physical exercise, such as a marathon, might prevent upper airway infections that can occur after heavy exercise.
• Swelling (inflammation) of the stomach (gastritis). Some medicine used to treat H. pylori infection can worsen stomach inflammation. Taking vitamin C along with one of these medicines called omeprazole might decrease this side effect.
• A condition in which red blood cells are broken down faster than they are made (hemolytic anemia). Taking vitamin C supplements might help manage anemia in people undergoing dialysis.
• High cholesterol. Taking vitamin C might reduce low-density lipoprotein cholesterol in people with high cholesterol.
• Lead poisoning. Consuming vitamin C in the diet seems to lower blood levels of lead.
• Osteoarthritis. Taking vitamin C from dietary sources or from calcium ascorbate supplements seems to prevent cartilage loss and worsening of symptoms in people with osteoarthritis.
• Pain after surgery. Taking 2 grams of vitamin C by mouth one hour before surgery might reduce pain and the need for opioid pain relievers after surgery. 
• Wrinkled skin. Skin creams containing vitamin C seem to improve the appearance of wrinkled skin. A vitamin C patch also seems to help reduce wrinkles.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using Vitamin C and call your doctor at once if you have:

• Joint pain, weakness or tired feeling, weight loss, stomach pain;
• Chills, fever, increased urge to urinate, painful or difficult urination; or
• Severe pain in your side or lower back, blood in your urine.

Common side effects may include:

• Heartburn, upset stomach; or

• Nausea, diarrhoea, stomach cramps.

• Transient mild soreness may occur at the site of intramuscular or subcutaneous injection.
• Too-rapid intravenous administration of the solution may cause temporary faintness or dizziness.
• Although vitamin C is generally considered safe, high doses can cause adverse effects, including heartburn, nausea, headaches, stomach cramps, and diarrhoea.
• Vitamin C is not stored in the body. If you take more than you need, the extra vitamin C will pass into your urine.
• Very large doses may also interfere with tests for sugar in diabetics and with tests for blood in the stool.

Biotin is a B complex vitamin used as a nutritional supplementation for dietary shortage or imbalance which may cause hair loss or total alopecia, brittle nails, skin rash in infants, and mild depression.

Biotin is a form of vitamin B that provides essential nutrients.

Major & minor side effects for Biotin

• Hypersensitivity
• Stomach discomfort and pain
• Skin rash

This medicine is considered safe for consumption by pregnant and breastfeeding women.

Use of this medicine in children should be done only under your doctor's supervision.

The effect of therapy with Biotin may occur 3 to 6 months after starting the therapy.

Dialysis patients may require a higher dose due to drug removal during dialysis.

• Folic acid is the synthetic form of folate, which is a naturally occurring B vitamin. Folate helps make DNA and other genetic material. It is especially important in prenatal health.
• Folate, also called vitamin B-9, is a B vitamin that naturally occurs in certain foods. Folic acid is the form of folate that manufacturers add to vitamin supplements and fortified foods.

• It helps the body make healthy new red blood cells.
• In its deficiency a person can develop anemia, leading to fatigue, weakness, and a pale complexion.
• It leads to folate deficiency anemia.
• Folate is also important for the synthesis and repair of DNA and other genetic material.
• It is particularly important to get during pregnancy. Folate deficiency during pregnancy can lead to neural tube irregularities, such as spina bifida and anencephaly.
• Folic acid is crucial for early fetal development.
• Neural tube irregularities - Taking folic acid supplements before and during pregnancy will help prevent neural tube irregularities in the fetus.
• It may also reduce the risks of preterm birth, heart irregularities, and cleft palate, among other things.
• Depression - Taking folic acid supplements could make depression medications more effective.
• The Office on Women’s Health recommend that women who are or might become pregnant take 400–800 mcg of folic acid per day, and that people with spina bifida or a family history of neural tube irregularities take 4,000 mcg per day. Those who are breastfeeding should aim to take around 500 mcg per day.
• The body absorbs folic acid from supplements and fortified foods better than the folate from naturally occurring foods.

Skin reactions, seizures, gases problem, diarrhea, irritability, confusion, stomach upset, loss of appetite, and hypersensitivity

It is important to note that folic acid can interact with certain medications.

A person should speak to a doctor before taking folic acid if they have any of the following:

• Epilepsy
• Type 2 diabetes
• Rheumatoid arthritis
• Lupus
• Inflammatory bowel disease (ibd)
• Celiac disease

People undergoing kidney dialysis may also wish to avoid taking folic acid.

Generic Name: cholecalciferol 

Vitamin D3 is needed for normal absorption of calcium and phosphorus, which is further utilized for development and maintenance of bones and teeth. This makes bones stronger and reduces risk for bone fractures.  Vitamin D3 also has a role in ones nerve, muscle, and immune systems.

People who might need extra vitamin D3 include

•  Older adult
•  Breastfed infants
•  People with dark skin
•  People with certain conditions, such as liver diseases, cystic fibrosis and Crohn's disease
•  People who have obesity or have had gastric bypass surgery

Symptoms of vitamin D3 deficiency include bone pain, muscle weakness, fatigue, and mood changes. Vitamin D3 is used for treating osteoporosis, rickets, osteomalacia, renal osteodystrophy and hypoparathyroidism.

•   nausea
•       vomiting
•         constipation
•         weight loss
•        weakness
•         increased calcium levels (hypercalcemia)

May cause allergic reactions or other problems if contain inactive ingredients such as peanut/soy. Pregnant women or Breastfeeding mothers need to consult their doctors before taking Vitamin D3 supplements.

• Vitamin A is vital for a healthy immune system, bone growth, vision, cell recognition and reproduction. Vitamin A often works as an antioxidant, fighting cell damage, but it also has many other uses. It has a vital role in the formation of heart, lungs, and kidney.
• Other functions of vitamin A include the formation and maintenance of teeth, bones, soft tissue, white blood cells, the immune system and mucus membranes. 
• Most people get enough vitamin A from their diets. However, a doctor might suggest vitamin A supplements to people who have vitamin A deficiencies. People most likely to have vitamin A deficiency are those with diseases (such as digestive disorders) or very poor diets.

• Vitamin A is used for improving the eyesight, maintaining cells of the skin and the lining of the digestive, urinary and respiratory tracts.
• It also helps in the formation of red and white blood cells in our body that are important to carry out the various essential functions of our body.
• Topical and oral retinoids are common prescription treatments for acne and other skin conditions, including wrinkles. 
• Oral vitamin A is also used as a treatment for measles and dry eye in people with low levels of vitamin A. 
• Vitamin A is also used for a specific type of leukemia.
• Vitamin A has been studied as a treatment for many other conditions, including cancers, cataracts, and HIV. However, the results are inconclusive.

• Night blindness
• A higher risk of infections, especially in the throat, chest, and abdomen
• Follicular hyperkeratosis, leading to dry, bumpy skin.
• Fertility issues
• Delayed growth in children
• Symptoms of vitamin A toxicity include dry skin, joint pain, vomiting, headaches, confusion.

• If you take too much of Vitamin A, it can lead to birth defects, abnormalities of the liver and disorders of the central nervous system.
• It can also decrease bone mineral density, leading to an increased risk of osteoporosis.
• This is because an excess of Vitamin A suppresses the building up of bones and increases its breakdown.
• The rate of calcium absorption by Vitamin D can also get affected due to excess of Vitamin A. Therefore, it is advised to use Vitamin A only as directed by your doctor.
• Interactions. Vitamin A supplements may interact with some birth control pills, blood thinners (Coumadin), acne medicines (isotretinoin), cancer treatments, and many other drugs.
• People who drink heavily or have kidney or liver disease shouldn’t take vitamin A supplements without talking to a doctor.