DermLetter.
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    • Skin Conditions
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  • Skincare Intel
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DermLetter.
DermLetter.
  • Articles
    • Skin Care & Beauty
    • Skin Conditions
    • Science
    • Trends & Lifestyle
  • Skincare Intel
  • Product Reviews

Skin Care & Beauty

93 posts

All about skincare and beauty. Products, tips and tricks, as well as damage control techniques to help you get by.

Introducing Skincare Intel image
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  • 9 min
  • Science
  • Skin Care & Beauty
  • Skin Conditions
  • Things

Introducing Skincare Intel

Skincare marketing is fiction. Skincare Intel scores 1,200+ products against 10 skin conditions — so you know what actually works for your skin, not the average.
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artistic rendition of Korean models with a set of skincare products (PDRN serums spicule skincare jelly textures)
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  • 5 min
  • Product Reviews
  • Skin Care & Beauty

K-Beauty 2025: PDRN serums, spicule skincare, and the rise of jelly textures

Discover the latest K-Beauty innovations dominating 2025: PDRN salmon DNA serums, spicule liquid microneedling technology, and jelly-textured skincare - advances to pursue this coveted 'mirror skin'.
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two sunscreens (one asian, the other one american) fight each other on the beach, people are watching the fight
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  • 8 min
  • Skin Care & Beauty
  • Trends & Lifestyle

The Great Sunscreen Wars: Asia Wins, North America Loses

Discover why Asian and European sunscreens offer superior protection while North Americans are stuck with outdated formulas. Learn about the regulatory barriers keeping advanced UV filters like bemotrizinol out of the US and Canada, why brands like Biore and Beauty of Joseon had to reformulate their popular products, and how consumers are fighting back through underground imports. The sunscreen inequality explained.
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image of six different faces representing Fitzpatrick Spectrum
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  • 3 min
  • Skin Care & Beauty
  • Trends & Lifestyle

Fitzpatrick’s Spectrum: Navigating Sun Protection for Every Skin Type

Explore the Fitzpatrick Scale and its significance in personalized sun protection with our detailed guide. Understand the classification of skin types, the science behind UV sensitivity, and how to tailor sun protection strategies to your specific needs.
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image of woman's face and concept of Chemical vs. Physical Sunscreen Ingredients
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  • 7 min
  • Skin Care & Beauty
  • Trends & Lifestyle

UV Guardians: Chemical vs. Physical Sunscreen Ingredients Explained

Explore the differences between chemical and physical sunscreens, their effectiveness in UV protection, and how to choose the right sunscreen for your skin type and activities.
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man in process of identifying his skin type with a piece of paper
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  • 4 min
  • Skin Care & Beauty
  • Trends & Lifestyle

Skin Symphony: Harmonizing Your Skincare Routine with Your Skin Type

Unlock the key to harmonizing your skincare routine with your skin type! Learn how to tailor your regimen to address specific needs, whether you have oily, dry, combination, or sensitive skin. Discover the best ingredients and products to achieve balance and radiance, while avoiding common pitfalls that can exacerbate issues.
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Top 15 Foods image
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  • 4 min
  • Skin Care & Beauty
  • Trends & Lifestyle

Top 15 Foods for Healthy, Glowing Skin

Discover the top 15 foods that enhance skin health and radiance. Learn how nutrition plays a pivotal role in achieving a glowing complexion and explore each food's unique benefits for maintaining skin vitality.
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  • 6 min
  • Skin Care & Beauty
  • Trends & Lifestyle

Step-by-Step Guide to Creating a Skincare Routine for Beginners

Explore our beginner's guide to establishing a skincare routine tailored to your skin type. Learn essential steps from cleansing to sun protection and enhance your skin's health and appearance. Start your journey towards a glowing, youthful complexion with our easy-to-follow, step-by-step instructions.
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image of before/after woman's face showing presumably the effects of treating skin with retinoids
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  • 10 min
  • Science
  • Skin Care & Beauty

Retinoids (Retinol, Tretinoin, Adapalene) in Skincare

Retinoids like retinol, Tretinoin, and Adapalene, derived from Vitamin A, enhance collagen, accelerate cell turnover, and clear pores, offering smoother, clearer skin. While retinol suits beginners, Tretinoin and Adapalene, prescription-strength options, cater to acne treatment and anti-aging, requiring gradual introduction for optimal results.
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image collage of skincare products, fruits and plants, apparently that's where Hydroxy Acids are derived from
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  • 9 min
  • Science
  • Skin Care & Beauty

Hydroxy Acids (AHAs, BHAs) in Skincare

Learn how Hydroxy Acids offer remarkable benefits for radiant, healthy-looking skin. AHAs gently exfoliate, revealing a brighter complexion, while BHAs penetrate deeper, ideal for oily and acne-prone skin. Hydroxy acids stimulate collagen production, improve skin texture, fade dark spots, and unclog pores.
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Hyaluronic Acid in Skincare
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  • 6 min
  • Science
  • Skin Care & Beauty

Hyaluronic Acid in Skincare

Discover the moisture-retaining marvel, hyaluronic acid, and its role in maintaining supple, plump skin. Counteract aging signs by replenishing lost moisture, smoothing fine lines, and improving skin texture. Learn how this natural humectant hydrates deeply, soothes, and stimulates collagen production for a more radiant complexion.
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image collage of grapes (from which Resveratrol is derived) and skincare products
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  • 4 min
  • Science
  • Skin Care & Beauty

Resveratrol in Skincare

Read about resveratrol, a potent antioxidant found in certain fruits like grapes, renowned for its ability to reduce the appearance of fine lines, wrinkles, and uneven skin tone while promoting a healthy glow. Incorporate resveratrol into your routine to neutralize free radicals, stimulate collagen production, and soothe inflammation.
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image for Alpha-Lipoic Acid Skincare, Asin woman face
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  • 4 min
  • Science
  • Skin Care & Beauty

Alpha-Lipoic Acid in Skincare

Discover the versatility of alpha-lipoic acid, a potent antioxidant with numerous skincare benefits, including boosting the effectiveness of other antioxidants, reducing inflammation, and promoting cell turnover. Incorporate alpha-lipoic acid into your skincare routine to neutralize free radicals, improve skin texture, and reveal a more radiant complexion.
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Vitamin C product collage
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  • 6 min
  • Science
  • Skin Care & Beauty

Vitamin C (Ascorbic Acid) in Skincare

Discover the benefits of Vitamin C for your skin, renowned for its antioxidant properties that neutralize free radicals, brightening effects that reduce dark spots, and stimulation of collagen production for firmer, youthful skin. Explore various forms like L-Ascorbic Acid, Ascorbyl Palmitate, Sodium Ascorbyl Phosphate, and Magnesium Ascorbyl Phosphate, each offering unique benefits and stability in skincare products.
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image if skincare products and the sun on the background
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  • 4 min
  • Science
  • Skin Care & Beauty

Zinc Oxide and Titanium Dioxide in Sunscreens

Learn about zinc oxide and titanium dioxide, minerals found in sunscreens, acting as physical blockers, forming a protective barrier against harmful UVA and UVB rays by reflecting and scattering them. They offer gentle, non-irritating protection, suitable for sensitive skin, and provide immediate defense upon application.
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image of nature crops Azelaic Acid is derived from
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  • 5 min
  • Science
  • Skin Care & Beauty

Azelaic Acid in Skincare

Learn how Azelaic Acid exfoliates, regulates sebum, and reduces inflammation, making it ideal for acne and rosacea. Explore its ability to fade dark spots, even skin tone, and protect against environmental damage. Uncover how Azelaic Acid inhibits melanin production, calms inflammation, and promotes skin cell turnover for a refined complexion.
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collage of foods and plants from which Vitamin E is derived
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  • 6 min
  • Science
  • Skin Care & Beauty

Vitamin E in Skincare

Explore Vitamin E's potent antioxidant properties and remarkable benefits, including protection against premature aging and soothing inflammation. Discover how it works to promote collagen production and maintains skin integrity.
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Niacinamide (vitamin B3) in Skincare image
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  • 7 min
  • Science
  • Skin Care & Beauty
  • Skin Conditions

Niacinamide (vitamin B3) in Skincare

Niacinamide (Vitamin B3) addresses various skin concerns, from acne to uneven skin tone, with proven results. This versatile ingredient enhances the skin's barrier function, reducing wrinkles, controlling oil production, and minimizing pores.
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image collage showing a woman in sci-fi environment, skincare realted
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  • 4 min
  • Science
  • Skin Care & Beauty

Retinaldehyde (Vitamin A) in Skincare

Derived from Vitamin A, Retinaldehyde boasts powerful benefits, including enhanced collagen production and improved skin texture. Discover its unique properties, minimal conversion requirement, and suitability for all skin types. Explore the science behind Retinaldehyde's effectiveness, supported by extensive research in the skincare industry.
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collage image of bakuchiol and the seeds it comes from with a woman's face being treated from fine lines
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  • 4 min
  • Science
  • Skin Care & Beauty

Bakuchiol in Skincare

Learn about bakuchiol, a natural compound derived from the seeds of the babchi plant, prized for its collagen-boosting properties and ability to diminish fine lines and wrinkles without the irritation often associated with retinol.
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Recent Reviews
A woman applies cream beside an AXIS-Y Dark Spot Correcting Glow Serum on a fresh green background.
AXIS-Y Dark Spot Correcting Glow Serum Review
  • 23.10.25
  • 7 min
4.2 rating
4.2/5
A woman with a green face mask beside a Vichy Normaderm cleanser on a pink floral background.
Vichy Normaderm Anti-Acne Intensive Purifying Cleansing Gel Review
  • 23.10.25
  • 16 min
4.5 rating
4.5/5
A woman touches her face beside an Anua 3+ Ceramide Panthenol Moisture Barrier Cream on a soft, creamy background.
Anua 3 Ceramide Panthenol Moisture Barrier Cream Review
  • 23.10.25
  • 8 min
4.6 rating
4.6/5
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