Nasturtium leaves have high amounts of Vitamin C which can help bolster the immune system and is also a natural antibiotic. It is important to get as many antioxidants as possible into your system to protect against and reverse the damage done by free radicals 
As antibiotics, the leaves help to treat colds and Flu. A cup of tea made with Nasturtium is an excellent way to get rid of the build-up of mucus that causes coughing and breathing troubles, just a few cups a day with honey added you should be breathing more easily.
Nasturtium microgreen leaves have antibiotic, antibacterial, and antifungal properties.
Due to the anti-inflammatory action of the herb, it can help ease irritation while the antibacterial action will help prevent bacteria from taking hold.
Nasturtium is in the Brassica family.
Benefits include treatment 
colds and flu
urinary tract infections
wound and cuts.
Helps with hair loss
Natural expectorant.
Preventing obesity and helps regulate weight. 
How to use Nasturtium as hair care:
Add a cup of the leaves and flowers to a liter of boiling water the mixture simmer for 15 minutes, cool and strain it is ready for use.
It can be drunk as a tea or stored in the refeigerator.to treat your hair and scalp. Massage the liquid into your scalp and hair then rinse it out. Its anti-fungal properties can help treat dandruff and bring back strength and vigor to your hair
AS A TASTE GARNISH
The plant can be eaten (leaves, flowers, pedals), They have a crisp, peppery flavor, similar to cress and a aroma similar to mustard. Use them in sandwiches, salads, or garnish dishes like soups or stews. Chopping up the leaves add them to cream cheese or egg dishes for a unique flavor to your meal.
TREAT MINOR WOUNDS AND CUTS
Apply the cool tea to the affected area with a cotton ball
WHO SHOULD AVOID NASTURIUM
Not enough information has been done on those who are breastfeeding and young children. People with intestinal ulcer and stomach ulcers, also pre-existing kidney disease.