UA can reduce senescence phenotype in skin fiber cells, inhibit β-galactosidase activity and extracellular matrix decomposition. It also shows potential in modulating the expression of various genes and proteins related to skin aging, such as those involved in collagen synthesis and turnover. Thus helps to enhance the firmness and elasticity of the skin, reducing the appearance of wrinkles and fine lines.

On the one hand, UA can reduce 45% melanin production in melanoma cells by inhibiting tyrosinase activity, and the effect is equivalent to that of 5μM kojic acid (positive control).

On the other hand, UA can also promote the blood vessels rapidly formed within the wound, and the deposition and remodeling of collagen matrix were accelerated. UA group's wounds exhibited the significantly higher intensity of collagen I and III deposition than control, and by day 21, the UA group's wounds were almost completely closed.

Journal of agricultural and food chemistry, 65(32), 6870–6876. / Frontiers in pharmacology, 13, 806284.

· Urolithin A ingredients on the market exhibit diverse colors, such as gray, light brown, off-white, and yellow. For high-purity products, color directly reflects product purity and impurity levels.  

· Powder Hue: StanYouth stands out with its immaculate and pale yellow shade.

· Solution Hue: Upon dissolution of urolithin A within organic solvents, latent impurities that are not perceptible in the solid state may become manifested. 

· Since there is currently no official high-quality reference standard available, we have to resort to multiple characterization methods such as HPLC and HNMR for the purity testing of urolithin A to ensure that its purity complies with the specifications.

· The purity of StanYouth Urolithin A, as determined by HPLC and HNMR, is greater than 98%. Moreover, We calibrated the in-house reference substance and used it for content examination to ensure the consistency of each batch.