A combination product comprising a strain of Bifidobacterium NCIMB 41676 and a strain of Bifidobacterium NCIMB 41003 is used in the prophylaxis or treatment of irritable bowel syndrome (IBS). The combination product leads to a surprising, sustained positive effects, even after feeding has stopped.

Disclosed are methods of treating and protecting teeth against erosion by use of oral compositions comprising polymeric mineral surface active agents, metal ions such as stannous and zinc and combinations thereof. The present methods provide improved resistance of teeth to erosive demineralization or dissolution and prevention of tooth damage by subsequent exposure of teeth to erosive chemicals such as acidic foods and beverages.

Disclosed are methods of treating and protecting teeth against erosion by use of oral compositions comprising polymeric mineral surface active agents, metal ions such as stannous and zinc and combinations thereof. The present methods provide improved resistance of teeth to erosive demineralization or dissolution and prevention of tooth damage by subsequent exposure of teeth to erosive chemicals such as acidic foods and beverages.

This invention provides a nutritional supplement composition which is a vitamin mint that can be taken anytime or anywhere without water or other liquid which is usually required for swallowing a tablet. The present invention is a nutritional supplement composition which is a convenient, flavorful and enjoyable vitamin mint which can be ingested without water.

Disclosed are methods of treating and protecting teeth against erosion by use of oral compositions comprising polymeric mineral surface active agents, metal ions such as stannous and zinc and combinations thereof. The present methods provide improved resistance of teeth to erosive demineralization or dissolution and prevention of tooth damage by subsequent exposure of teeth to erosive chemicals such as acidic foods and beverages.

Disclosed are methods of treating and protecting teeth against erosion by use of oral compositions comprising polymeric mineral surface active agents, metal ions such as stannous and zinc and combinations thereof. The present methods provide improved resistance of teeth to erosive demineralization or dissolution and prevention of tooth damage by subsequent exposure of teeth to erosive chemicals such as acidic foods and beverages.

An object of the present invention is to provide a novel agent for adjusting hardness of a lens of an eye which can be taken easily, conveniently, and safely for a long-term, can effectively adjust the hardness of the lens, and is capable of preventing, alleviating and improving poor focus and decreased near visual acuity, such as presbyopia, caused by aging and various diseases. The present invention solves the above object by providing an agent for adjusting hardness of a lens of an eye comprising a glycosyl hesperetin as an active ingredient.

Disclosed are methods of treating and protecting teeth against erosion by use of oral compositions comprising polymeric mineral surface active agents, metal ions such as stannous and zinc and combinations thereof. The present methods provide improved resistance of teeth to erosive demineralization or dissolution and prevention of tooth damage by subsequent exposure of teeth to erosive chemicals such as acidic foods and beverages.

Disclosed are methods of treating and protecting teeth against erosion by use of oral compositions comprising polymeric mineral surface active agents, metal ions such as stannous and zinc and combinations thereof. The present methods provide improved resistance of teeth to erosive demineralization or dissolution and prevention of tooth damage by subsequent exposure of teeth to erosive chemicals such as acidic foods and beverages.

Provided herein are an oral care additive, an oral care composition, a method of preparing the same, an oral care kit and use thereof. The main ingredient of the oral care additive contains one or more of nicotinic acid, nicotinamide or derivatives thereof to supplement and increase the level of ?-nicotinamide adenine dinucleotide in the oral cavity, and various vitamin and coenzyme may be included as well to complement the function of the main ingredient. The additives and the application methods of the present invention retain the functionality of the existing oral care products while adding new efficacy, thereby providing a more comprehensive oral health management experience for the user.