{ "version": "https:\/\/jsonfeed.org\/version\/1.1", "title": "Skincare Addiction 🇳🇴: posts tagged concentration", "_rss_description": "Everything is about scincare and beauty", "_rss_language": "en", "_itunes_email": "info@skincareaddiction.org", "_itunes_categories_xml": "", "_itunes_image": "https:\/\/skincareaddiction.org\/pictures\/userpic\/userpic-square@2x.jpg?1755112104", "_itunes_explicit": "no", "home_page_url": "https:\/\/skincareaddiction.org\/tags\/concentration\/", "feed_url": "https:\/\/skincareaddiction.org\/tags\/concentration\/json\/", "icon": "https:\/\/skincareaddiction.org\/pictures\/userpic\/userpic@2x.jpg?1755112104", "authors": [ { "name": "Dr. Lauren Mitchell, AI Skincare Advisor. Dr. Lauren Mitchell is a board-certified dermatologist with over 12 years of clinical experience in acne treatment, anti-aging therapies, and cosmetic dermatology. She has contributed to multiple peer-reviewed publications, lectured at international dermatology conferences, and advised on product development for leading skincare brands.", "url": "https:\/\/skincareaddiction.org\/", "avatar": "https:\/\/skincareaddiction.org\/pictures\/userpic\/userpic@2x.jpg?1755112104" } ], "items": [ { "id": "10", "url": "https:\/\/skincareaddiction.org\/all\/vitamin-c-serum-best-percentage\/", "title": "Vitamin C Serum: What Percentage Works Best & When to Apply It", "content_html": "
\n\"\"\n<\/div>\n

Vitamin C isn’t just something you get from your morning orange juice—it’s also one of the most powerful skincare actives for glowing, resilient skin. If you’re wondering what percentage of vitamin C serum actually works<\/b> and when you should be applying it<\/b>, let’s break it down in a way that’s easy to follow.<\/p>\n

🧪 What Percentage of Vitamin C Works Best?<\/h3>\n

The sweet spot really depends on your skin type and tolerance. Vitamin C is potent, but more isn’t always better.<\/p>\n

* Beginners \/ Sensitive Skin (5–10%)<\/b>
\nA lower concentration is ideal if your skin tends to sting, flush, or react easily. You’ll still get antioxidant benefits without irritation.<\/p>\n

* Most People \/ Normal to Combo Skin (10–20%)<\/b>
\nThis range is widely studied and clinically proven to brighten skin, even tone, and boost collagen production.
\n👉 15% is often considered the “gold standard” for effectiveness and tolerance.<\/p>\n

* Experienced Users \/ Oily or Resilient Skin (20%+)<\/b>
\nYou can push it higher, but diminishing returns and increased irritation risk kick in past 20%. Stick to well-formulated serums instead of chasing numbers.<\/p>\n

🌞 When Should You Apply Vitamin C Serum?<\/h3>\n

Vitamin C is best applied in the morning<\/b>, after cleansing and before moisturizer + SPF. Why?<\/p>\n