Why Hair and Skincare Products Lose Effectiveness Over Time

Sure, here’s a summary of the key points from the text:

1. Time for Effectiveness: Hair and skin care products require at least four to six weeks of consistent use before determining their effectiveness. Immediate results should not be expected.

2. Common Misconception: Your hair and skin don’t "get used" to products. Changes in effectiveness are often due to other factors.

3. Other Factors Influencing Effectiveness:
   • Product buildup on hair
   • Changes in your body
   • Storage issues with the products
   • Seasonal changes
   • Product expiration
   • Hormonal changes
   • Stress

Dermatologists Jessica Garelik and Noah Gratch emphasize these points to clarify why results may vary over time.