Zinc - Immune Support, Hormone Balance Supplement
Zinc is an essential mineral that can provide support for immune function and hormone balance. Here are some of the top selling points for Zinc supplements:

 
Helps to support a healthy immune system
 
Promotes hormonal balance and supports healthy testosterone levels
 
Aids in healthy digestion and nutrient absorption
 
May improve skin health and wound healing

Amazon Sales Trend Analysis
According to Amazon sales data, Zinc supplements have been steadily increasing in popularity over the past few years. This may be due to increased awareness about the importance of immune function and hormonal balance for overall health.
Offline Sales Trend Analysis
The offline sales trend for Zinc supplements also appears to be on the rise. Health food stores and supplement retailers have reported increased demand for Zinc products, particularly during cold and flu season.
Main Functions and Benefits List
Zinc supplements can provide a range of benefits, including:

 
Supports immune function
 
Promotes hormonal balance
 
Aids in healthy digestion
 
Assists in healthy wound healing
 
May improve skin health

Best-Selling Products and Ingredients
Some of the best-selling Zinc supplements on the market may contain a variety of ingredients, including:

 
Zinc gluconate
 
Zinc picolinate
 
Vitamin C
 
Vitamin D
 
Echinacea
 
Elderberry

These ingredients may work together to provide a synergistic effect and maximize the benefits of Zinc supplements.
Keywords
Zinc, Immune support, Hormone balance, Private Label, OEM Manufacturer, ODM, Contract manufacturing, brand marketing, Vitamin C, Vitamin D, Echinacea, Elderberry.
Note: As with any supplement, it is recommended to consult a qualified healthcare professional before taking.