Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

First Aid Beauty Brighten + Glow Facial Radiance Pads With Glycolic + Lactic Acids Versus QRxLabs Glycolic Acid 20% Resurfacing Pads

First Aid Beauty Brighten + Glow Facial Radiance Pads With Glycolic + Lactic Acids Versus QRxLabs Glycolic Acid 20% Resurfacing Pads This smoothing exfoliating pad uses a pre-saturated pad with Lactic Acid and Glycolic Acid to refine skin texture and brighten

First Aid Beauty Brighten + Glow Facial Radiance Pads With Glycolic + Lactic Acids Versus QRxLabs Glycolic Acid 20% Resurfacing Pads

This smoothing exfoliating pad uses a pre-saturated pad with Lactic Acid and Glycolic Acid to refine skin texture and brighten dull-looking skin.

This smoothing exfoliating pad uses a pre-saturated pad with Glycolic Acid to refine skin texture and brighten dull-looking skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Aloe Barbadensis Leaf Juice

Cucumis Sativus Fruit Water

Lactic Acid

Glycolic Acid

Hyaluronic Acid

Phyllanthus Emblica Fruit Extract

Citrus Limon Peel Extract

Citrus Nobilis Fruit Extract

Glycerin

Polysorbate 20

Phenoxyethanol

Potassium Sorbate

Sodium Benzoate

Citric Acid

Chlorphenesin

Sodium Hydroxide

Water, Aloe Barbadensis Leaf Juice, Cucumis Sativus Fruit Water, Lactic Acid, Glycolic Acid, Hyaluronic Acid, Phyllanthus Emblica Fruit Extract, Citrus Limon Peel Extract, Citrus Nobilis Fruit Extract, Glycerin, Polysorbate 20, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Citric Acid, Chlorphenesin, Sodium Hydroxide

Hamamelis Virginiana Water

Propanediol

Pantothenic Acid

Calendula Officinalis Extract

Camellia Sinensis Leaf Extract

Allantoin

Menthol

Eucalyptus Globulus Oil

Mentha Spicata Flower/Leaf/Stem Oil

Tocopherol

Ascorbyl Palmitate

Diazolidinyl Urea

Iodopropynyl Butylcarbamate

Water, Glycolic Acid, Hamamelis Virginiana Water, Sodium Hydroxide, Polysorbate 20, Propanediol, Glycerin, Pantothenic Acid, Calendula Officinalis Extract, Camellia Sinensis Leaf Extract, Allantoin, Menthol, Eucalyptus Globulus Oil, Mentha Spicata Flower/Leaf/Stem Oil, Tocopherol, Ascorbyl Palmitate, Diazolidinyl Urea, Iodopropynyl Butylcarbamate

Reviews

Be the first to review

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.

Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.

This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Glycolic Acid is arguably the most famous alpha hydroxy acid (AHA) with tons of research backing its benefits.

It is found naturally in sugar cane but the form used in skincare is usually synthetic for purity and stability.

Glycolic acid removes the top layer of dead skin cells to allow newer and fresher ones to emerge.

AHAs work by breaking down the structural “glue” that holds old skin cells in place. When that buildup is gone, your skin can renew itself more efficiently.

Research also shows glycolic acid stimulates collagen production, helping to firm and thicken the skin over time. This is one of its biggest advantages over other AHAs.

Overall, glycolic acid helps with:

Fun fact: Glycolic acid boosts skin hydration by helping it produce molecules that increase hyaluronic acid naturally.

To work best, glycolic acid products should have a pH between 3-4 (that’s where exfoliation is most effective but still gentle on skin).

The pH and concentration of a product are key to its effectiveness:

It is normal to feel a slight stinging sensation when using glycolic acid. This usually fades as your skin adjusts.

Because glycolic acid has the smallest molecular size in the AHA family, it can penetrate deeper, which enhances its effectiveness but also makes it more likely to irritate sensitive skin.

If your skin is very sensitive or prone to rosacea, glycolic acid may be too strong; in that case, try milder options like lactic acid or a PHA instead.

Recent studies suggest glycolic acid might even help protect against UV damage. But don’t skip sunscreen! Freshly exfoliated skin is more sensitive to the sun.

Glycolic acid is a skincare superstar. It smooths, brightens, hydrates, and firms the skin. Unless you’re highly sensitive, it’s well worth adding to your routine.

Read more about some other popular AHA's here:

Polysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.

It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.

The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.

Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).

True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.

Because it is derived from lauric acid, it may not be fungal acne safe.

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

01

Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Side-by-side

  1. 01Water
  2. 02Glycerin
  3. 03Caprylic/Capric Triglyceride
  4. 04Butyrospermum Parkii Butter
  5. 05Dimethicone
  6. 06Glyceryl Stearate
  7. 07C10-18 Triglycerides
  8. 08Ethylhexyl Palmitate
  9. 09Lactobacillus Ferment
  10. 10Jojoba Esters
  11. 11Cetyl Alcohol
  12. 12Niacinamide
  13. 13Spilanthes Acmella Flower Extract
  14. 14Helianthus Annuus Seed Cera
  15. 15Acacia Decurrens Flower Cera
  16. 16Algae Extract
  17. 17Palmitoyl Tripeptide-38
  18. 18Sodium Hyaluronate
  19. 19Avena Sativa Kernel Flour
  20. 20Palmitoyl Hexapeptide-12
Source · skinsort.com
02

Product index

Related product references

Product

First Aid Beauty 5-In-1 Bouncy Mask

First Aid Beauty 5-In-1 Bouncy Mask First Aid Beauty 5-In-1 Bouncy Mask ingredients explained: Aqua (Water, Eau), Propanediol, Butylene Glycol, Cyclopentasiloxane, Glycerin, PEG-240/Hdi Cop…

Source: incidecoder.comView reference →

Product

First Aid Beauty 5 in 1 Eye Cream

First Aid Beauty 5 in 1 Eye Cream Ingredients in First Aid Beauty 5 in 1 Eye Cream explained: benefits, concerns, and detailed analysis of 36 ingredients including Water, Glycerin, and Dime…

Source: skinsort.comView reference →
03

Comparison edit

Read side by side