Thank you for your question. Acne is a common skin concern among teenagers and young adults, and it's great that you're seeking advice on how to treat it. Retinoids are a type of medication derived from Vitamin A that are commonly used to treat acne. They work by increasing skin cell turnover and preventing the formation of new acne lesions. Retinoids can also help to improve the appearance of acne scars over time. There are several types of retinoids available, both over-the-counter and by prescription. Over-the-counter retinoids include adapalene, while prescription options include tretinoin, tazarotene, and isotretinoin. Each retinoid has its own unique properties and benefits. In order to determine which retinoid is best for you, it is important to consult with a dermatologist. They can evaluate your skin type, acne severity, and other factors to recommend the most appropriate treatment plan for your specific needs. It's worth noting that retinoids can have some side effects, such as dryness, peeling, and increased sensitivity to the sun. It is important to use them as directed and to wear sunscreen daily to protect your skin. In conclusion, if you have acne-prone skin with frequent pimples and acne scars, retinoids can be an effective treatment option. It is important to consult with a dermatologist to determine which retinoid is best for your specific needs and to use them as directed to minimize any potential side effects.