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

Posts by tag

Active Ingredients

26 posts
A woman with glowing skin poses beside a blue bottle of Bloomeffects Black Tulip Regenerative Brightening Serum surrounded by soft pink flowers.
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  • 8 min
  • Product Reviews

Bloomeffects Black Tulip Regenerative Brightening Serum Review

Bloomeffects' Black Tulip serum uses bioactive tulip bulb compounds for brightening and regeneration, bridging botanical innovation with traditional skincare science.
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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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image of Panthenol
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  • 4 min
  • Science

Panthenol (Vitamin B5) in Skincare

Learn how this potent humectant deeply hydrates, soothes, and protects the skin, making it a must-have in skincare routines. Dive into the science behind Panthenol's effectiveness, its role in promoting collagen production, and its ability to maintain skin health.
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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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Collagen Peptides image
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  • 6 min
  • Science

Collagen Peptides: The Secret Ingredient for Youthful and Radiant Skin

Listen to this podcast: [player id=3996] As we age, maintaining healthy and radiant skin becomes a top priority. Many of us search for the perfect skincare products and treatments to…
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Peptides ai image
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  • 3 min
  • Skin Care & Beauty

The Power of Peptides: The Next Big Thing in Skincare

Listen to this podcast: [player id=4030] The skincare industry is constantly in pursuit of the next breakthrough ingredient, and peptides have recently taken center stage. These small chains of amino…
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maple leafs
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  • 3 min
  • Science
  • Trends & Lifestyle

Maple Leaf Extract: Wrinkle Buster?

Maple leaf extract is the latest ingredient that's picking up traction. Will it fizzle out, or is it the real deal? What does the science say so far?
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close up of charcoal
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  • 4 min
  • Trends & Lifestyle

Activated Charcoal in Skincare

Activated charcoal is on a massive tear. Instagram is bombarded with black ice cream, hot dogs, soda, and now it's hitting the skincare scene.
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woman rinsing face with water
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  • 6 min
  • Science

Are Parabens Really Dangerous?

Parabens have come under fire in recent years, but what does the science say? Is there something to worry about, and if so, how do you avoid it?
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Centipedes
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  • 2 min
  • Science

Centipedes: The New Cosmetic Ingredient?

Centipedes used as a cosmetic ingredient?! We look at the credibility of this ingredient - from the perspective of science.
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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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