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Unlock Radiant Skin: Benefits of Vitamin C, Hyaluronic Acid Use, & Glycolic Acid Advantages

Aug 22

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Up close of women's glowing skin

Glowing Radiance Resurfacing: Renew and Revitalise


In this article, we delve into the transformative powers of the power trio: Vitamin C, Hyaluronic Acid, and Glycolic Acid. Discover how each of these superstars can rejuvenate your skin, improve texture, and promote a youthful complexion. From brightening dark spots with Vitamin C to deeply hydrating with Hyaluronic Acid and exfoliating with Glycolic Acid, we'll uncover the benefits, usage tips, and recommended products for incorporating these essentials into your daily routine. Whether you're aiming to enhance radiance, refine skin texture, or maintain a healthy glow, let's explore the secrets of effective skincare that bring out your skin's natural luminosity.


Vitamin C: The Brightening and Anti-Aging Must-Have

Vitamin C is a powerhouse in skincare, celebrated for its ability to brighten skin, even out tone, and reduce fine lines and wrinkles. This serum is a game-changer and an essential addition to your skincare routine, improving both the appearance and health of your skin.


This skincare hero:

  1. Brightens and Evens Skin Tone: Vitamin C inhibits melanin production, effectively reducing the appearance of dark spots, hyperpigmentation, and uneven skin tone.

  2. Promotes Collagen Production: As a crucial component in collagen synthesis, Vitamin C helps maintain skin firmness and elasticity, resulting in a more youthful appearance.

  3. Neutralises Free Radicals: Environmental factors like UV radiation and pollution generate free radicals, which can damage the skin. Vitamin C's antioxidant properties help neutralise these harmful molecules, protecting the skin from oxidative stress.


Incorporating Vitamin C Serum in Your Skincare Routine:

To incorporate Vitamin C serum into your skincare routine, apply it daily after cleansing and before moisturising. This ensures optimal absorption of its antioxidant benefits and supports skin health throughout the day. 


When to Use Vitamin C?

Using Vitamin C in your morning routine offers distinct advantages. As a potent antioxidant, Vitamin C helps shield the skin from environmental stressors such as UV rays and pollution, which can lead to premature ageing and skin damage. 


Recommended Products:

  • Sunday Riley C.E.O. 15% Vitamin C Brightening Serum: This powerful serum targets dullness, dark spots, and discolourations with its potent THD Ascorbate formulation, promoting firmer, plumper skin and restoring youthful bounce and even tone.

  • SkinCeuticals C E Ferulic Serum: This potent antioxidant serum combines 15% pure Vitamin C, 1% Vitamin E, and 0.5% Ferulic Acid to brighten complexion, reduce signs of ageing, and protect skin from environmental stressors.

  • Medik8's C-Tetra Lipid Vitamin C Radiance Serum: KOAAH's top pick! Renowned for its ability to restore skin radiance within 7 days, this serum contains 7% tetrahexyldecyl ascorbate to brighten and diminish fine lines. It’s fortified with Vitamin E for antioxidant defence, making it perfect for those new to Vitamin C or with sensitive skin.

KOAAH top vit c picks, SkinCeuticals C E Ferulic Serum,  Sunday Riley C.E.O. 15% Vitamin C Brightening Serum,  Medik8's C-Tetra Lipid Vitamin C Radiance Serum

These products are formulated to brighten the skin, even out tone, and shield against environmental damage, making them suitable for a variety of skin types and preferences.

Hyaluronic Acid: The Ultimate Hydrator for Plump, Youthful Skin

Hyaluronic Acid is a powerful humectant known for its ability to hold up to 1,000 times its weight in water, making it a key ingredient for maintaining skin hydration and promoting a smooth, youthful appearance.


Here are the key benefits:

  1. Deep Hydration: Hyaluronic Acid attracts moisture from the environment and binds it to the skin, ensuring long-lasting hydration and a plump, supple complexion.

  2. Improved Skin Texture: By boosting skin hydration, Hyaluronic Acid helps to enhance skin texture and elasticity, thereby reducing the appearance of fine lines and wrinkles.

  3. Enhanced Product Absorption: Hyaluronic Acid helps other skincare products penetrate more effectively into the skin, making your overall routine more beneficial and efficient.


Incorporating Hyaluronic Acid into Your Skincare Routine

Apply a Hyaluronic Acid serum after cleansing your face and before moisturising. This allows the serum to lock in hydration and provide a moisture-boosting base for your moisturiser.


When to Use Hyaluronic Acid: Day, Night, or Both?

Hyaluronic Acid can be used both during the day and at night:

  • Daytime Use: Apply in the morning to provide a hydration boost and protect your skin from environmental stressors throughout the day.

  • Nighttime Use: Apply at night to support your skin's natural repair and rejuvenation processes, ensuring long-lasting hydration while you sleep.


Recommendations Products:

  • La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum: Specifically formulated for dehydrated skin showing signs of ageing. Instantly restores bounce, suppleness, and a fresh complexion. Clinically proven results include improved elasticity and firmness by 24% after 4 hours and 70% more hydrated skin.

  • Medik8 Hydr8 B5: This advanced serum combines multi-weight Hyaluronic Acid with Vitamin B5 to deeply nourish, visibly plump, and retain moisture in the skin. It supports skin cell regeneration and distributes hydration evenly throughout the skin's many layers.

  • Vichy Minéral 89 Hyaluronic Acid Booster: Hydrates and fortifies the skin barrier with Hyaluronic Acid, 15 essential minerals, and Vichy Volcanic Mineralising Water. Provides 24-hour hydration with a lightweight gel texture that absorbs quickly.

KOAAH top hyaluronic acid picks, Vichy Minéral 89 Hyaluronic Acid Booster, Medik8 Hydr8 B5,  La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum

These products are designed to enhance skin hydration, improve texture, and maintain a healthy skin barrier, catering to various skin types and preferences.


Glycolic Acid: The Exfoliating Expert

Glycolic Acid, classified as an Alpha-Hydroxy acid (AHA), is widely recognised for its potent exfoliating properties. This ingredient effectively removes dead skin cells from the skin's surface, revealing a fresher, smoother, and more radiant complexion underneath.


Glycolic Acid can provide benefits such as:

  1. Enhanced Skin Texture: By exfoliating dead skin cells, Glycolic Acid helps improve skin texture, making it appear smoother and more refined.

  2. Reduced Appearance of Fine Lines: Glycolic Acid stimulates collagen production, which can help reduce the appearance of fine lines and wrinkles over time.

  3. Even Skin Tone: Regular use of Glycolic Acid can promote a more even skin tone by addressing issues like hyperpigmentation and uneven texture.


Incorporating Glycolic Acid into Your Skincare Routine:

Start by choosing a suitable product like a toner or serum. After cleansing, apply a small amount with a cotton pad or fingertips, avoiding the eye area. Let it absorb for a few minutes before following with moisturiser.


Begin using Glycolic Acid once or twice a week, gradually increasing frequency based on your skin's tolerance. Monitor your skin for any signs of irritation and adjust usage as needed to achieve smoother and more radiant skin.


When to Use Glycolic Acid: Nighttime for Optimal Results

Glycolic Acid is typically best used as part of your nighttime skincare routine. This timing allows Glycolic Acid to work overnight, promoting skin renewal and exfoliation while you sleep. Using it at night also minimises any potential sensitivity to sunlight, as Glycolic Acid can increase skin's susceptibility to UV damage.


Recommended Products:

  • Pixi Glow Tonic: This toner has a potent 5% Glycolic Acid concentration that deeply cleanses pores, removes excess oil, and speeds up cell turnover for a brighter complexion. It's also got Ginseng to boost circulation and Aloe Vera for soothing hydration, refining pores, balancing skin, and leaving you with a radiant, healthy glow.

  • Sunday Riley Good Genes Glycolic Acid Treatment: This Glycolic Acid treatment deeply exfoliates and revitalises dull, congested, and sun-damaged skin, revealing a visibly radiant complexion. Featuring ultra-pure Glycolic Acid, it penetrates deeply to break down debris and improve the appearance of pores, wrinkles, and dullness.

  • The Ordinary Glycolic Acid 7% Toning Solution: This toner features a potent 7% Glycolic Acid concentration known for deeply cleansing pores, removing excess oil, and accelerating cell turnover to promote a brighter complexion. However, it's not suitable for sensitive, peeling, or compromised skin types.

KOAAH glycolic acid picks, Pixi Glow Tonic, The Ordinary Glycolic Acid 7% Toning Solution,  Sunday Riley Good Genes Glycolic Acid Treatment

These products leverage glycolic acid to exfoliate the skin, enhance radiance, and improve skin texture through regular use.


pH Levels: The Key to Skincare Success

When it comes to skincare, understanding the acidity or pH levels of products is crucial because it affects how well they work with your skin and with other products in your routine. 


  • Low pH Products: Acidic products with lower pH levels contain ingredients like glycolic acid or Vitamin C. These acids help exfoliate, renew skin cells, and brighten your complexion.

  • High pH Products: Alkaline products with higher pH levels often focus on hydration, such as Hyaluronic Acid, which moisturises and maintains the skin's barrier function.


The Art of Product Layering

Always apply products with lower pH levels first, followed by those with higher pH levels. This allows acidic products to effectively penetrate the skin before applying alkaline products, which could neutralise acidity and reduce effectiveness.


So which comes first? Glycolic Acid, Vitamin C or Hyaluronic Acid?

If you're using both Glycolic Acid and Vitamin C, you would apply Glycolic Acid first to exfoliate and prepare the skin. After allowing it to absorb, you would follow with Vitamin C to benefit from its antioxidant properties and brightening effects. Finally, you would apply Hyaluronic Acid to lock in moisture and hydrate the skin.


At KOAAH, we personally use Vitamin C in the morning and Glycolic Acid in the evenings, with Hyaluronic Acid used during both times. However, the choice is up to you. Tailor your routine based on your skin's needs and preferences for the best results.

When incorporating skincare products into your routine, remember to apply them in the correct pH-based order: acidic products first, followed by those with higher pH levels. This practice ensures that each product can work effectively and deliver maximum benefits for your skin, whether it's serums, toners, creams, or other treatments.


Exfoliating Masks with Natural Fruit Enzymes

For an added skincare boost, consider incorporating exfoliating masks enriched with natural fruit enzymes. These masks utilise enzymes derived from fruits to gently dissolve dead skin cells, revealing smoother and more radiant skin.


Recommended Products:

  • Elemis Papaya Enzyme Peel: This non-abrasive exfoliating cream harnesses the power of papaya and pineapple enzymes to unveil a brighter complexion.

  • Caudalie Vinoperfect Glycolic Peel Mask: KOAAH’s top pick! Infused with natural fruit enzymes like papaya extract, this peel mask gently exfoliates the skin to reveal a smoother, more radiant complexion. Suitable for all skin types seeking a rejuvenating skin care treatment.

  • Andalou Naturals Pumpkin Honey Glycolic Mask: Blending pumpkin enzymes with Glycolic Acid, this mask offers a potent exfoliating treatment that promotes skin renewal and luminosity.


KOAAH top exfoliating masks, Elemis Papaya Enzyme Peel, Andalou Naturals Pumpkin Honey Glycolic Mask, Caudalie Vinoperfect Glycolic Peel Mask

Integrating these exfoliating masks into your skincare regimen can enhance skin texture, promote a more radiant appearance, and complement the benefits of your regular skincare routines


Seek Professional Advice for Personalised Skincare Recommendations

It's important to consult with a dermatologist before incorporating new skincare products into your routine. Every individual's skin is unique, and what works well for one person may not suit another. A dermatologist can provide personalised advice, ensuring that the products you choose are suitable for your skin type and concerns. This professional guidance helps you avoid potential adverse reactions and ensures that your skincare routine delivers the best possible results for your skin.

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