Evidence supporting the use of: N-Acetyl Carnosine
For the health condition: Eye Problems
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
N-Acetyl Carnosine (NAC) is used primarily in the form of eye drops, with claims that it can help treat or delay the progression of cataracts and other age-related eye problems. The rationale for its use is based on its antioxidant properties, as oxidative stress is a known factor in the development of cataracts and other ocular diseases. Some small clinical trials, particularly those conducted in Russia and published in the early 2000s, have suggested that NAC eye drops may improve lens clarity and visual function in people with cataracts. However, these studies have notable limitations, including small sample sizes, short durations, and lack of independent replication. Systematic reviews and regulatory agencies such as the U.S. FDA have not recognized NAC as a proven treatment for eye disease, and high-quality, large-scale randomized controlled trials are lacking. While there is a plausible scientific mechanism and some preliminary human data, the overall strength of evidence is currently low, and more robust research is needed before NAC can be considered an evidence-based intervention for eye problems.
Other ingredients used for Eye Problems
Alpha-caroteneanthocyanins
berry flavor
beta-carotene
bilberry
blueberry
carrot
chamomile
citrus bioflavonoids
cryptoxanthin
cucumber
turmeric
fennel
flavonols
goldenseal
green tea
hypromellose
Japanese sophora
lutein
mango
mixed carotenoids
omega-3 fatty acids
rutin
selenium
vitamin A
vitamin C
vitamin E
Zeaxanthin
Zinc
chickweed
nut grass
boxthorne
chrysanthemum
oriental arborvitae
Trichosanthes
avens
anthocyanidins
anthocyanosides
bai ji
beta-zeacarotene
berry
bioflavonoids
Bassia scoparia
carotene (unspecified)
Carthamus
Epidermal Growth Factor
Eyebright
flavonoids
flavoglycosides
fibroblast growth factor
Growth factors
ginkgo flavone glycoside
lodhtree
Ligustrazin
little ironweed
marigold
Nardostachys
N-Acetyl Carnosine
Oligomeric proanthocyanidins
Pulsatilla
Pycnogenol
Speedwell
Self-Heal
Sumac
Viola
Yerba buena