Acerola (Malpighia emarginata) is a rich source of ascorbic acid (vitamin C), which has an anti-oxidant capacity contributing to the optimal functioning of the immune system. Some more benefits are: -Zinc is an important trace element for cellular growth and differentiation contributing to the reinforcement of the body’s antioxidant defense and the normal functioning of the immune system. -Zinc and vitamin C are considered to benefit people by reducing the symptoms and/or duration of respiratory tract infections like the common cold. -Propolis, a natural compound, is widely known for its anti-oxidant and anti-inflammatory action and its potential cardio and neuroprotective activity. -Another bee product is the royal jelly that has antioxidant, immunomodulatory, anti-diabetic and hypocholesterolemic effects. -Colostrum is the first milk that is produced after mammals’ parturition. It contains a range of antimicrobial peptides and proteins with intense anti-bacterial action, immune-regulatory factors and bioactive oligosaccharides. -Colostrum has the ability to maintain or improve the immune system’s defense, but also to maintain the integrity of gastrointestinal mucosa, giving protection against detrimental conditions like inflammation. -Αndrographis paniculata extract with anti-inflammatory and anti-microbial action stimulates the immune system, preventing respiratory tract infection. -Elderberry (Sambucus nigra) is widely known for its antibacterial and anti-viral action having health-promoting properties. Its extract contributes to the relief of symptoms severity and reduction of the duration of viral infection. -Astragalus membranaceus is a popular traditional immunomodulating herb, which is believed to exert antioxidant, anti-aging and anti-viral effect, as well as contribute to the regulation of blood glucose and lipids. It is also a potentially effective cardioprotective factor against viral myocarditis. -Thyme (Τhymus vulgaris) and oregano extract (Origanum vulgare) are rich in the anti-oxidant and anti-inflammatory carvacrol, which improves lung functioning having positive effects against respiratory symptoms of humans with lung disorders.