Educational guide
Dr. Dennis Gross Skincare Alpha Beta Universal Daily Peel Versus Dr. Loretta Micro Peel Peptide Pads
Dr. Dennis Gross Skincare Alpha Beta Universal Daily Peel Versus Dr. Loretta Micro Peel Peptide Pads This smoothing exfoliator is formulated around Glycolic Acid and Salicylic Acid to refine skin texture and brighten dull-looking skin. This smoothing exfoliati
This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.
Dr. Dennis Gross Skincare Alpha Beta Universal Daily Peel Versus Dr. Loretta Micro Peel Peptide Pads
This smoothing exfoliator is formulated around Glycolic Acid and Salicylic Acid to refine skin texture and brighten dull-looking skin.
This smoothing exfoliating pad uses a pre-saturated pad with Glycolic Acid and Lactobacillus Ferment to refine skin texture and brighten dull-looking skin.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Alcohol Denat.
Glycolic Acid
Potassium Hydroxide
Hamamelis Virginiana Water
Salicylic Acid
Polysorbate 20
Citric Acid
Lactic Acid
Malic Acid
Camellia Sinensis Leaf Extract
Achillea Millefolium Extract
Anthemis Nobilis Flower Extract
Soy Isoflavones
Copper PCA
Zinc PCA
Lecithin
Disodium EDTA
Alcohol
Polysorbate 80
Parfum
Linalool
Benzyl Salicylate
Benzoic Acid
Phenoxyethanol
Sodium Benzoate
Sodium Bicarbonate
Ascorbic Acid
Ascorbyl Palmitate
Retinyl Palmitate
Retinol
Tocopheryl Acetate
Resveratrol
Ubiquinone
Leuconostoc/Radish Root Ferment Filtrate
Phospholipids
Sodium PCA
Dimethicone
PEG-30 Stearate
Octoxynol-9
BHT
Tetrasodium EDTA
Sorbic Acid
Water, Alcohol Denat., Glycolic Acid, Potassium Hydroxide, Hamamelis Virginiana Water, Salicylic Acid, Polysorbate 20, Citric Acid, Lactic Acid, Malic Acid, Camellia Sinensis Leaf Extract, Achillea Millefolium Extract, Anthemis Nobilis Flower Extract, Soy Isoflavones, Copper PCA, Zinc PCA, Lecithin, Disodium EDTA, Alcohol, Polysorbate 80, Parfum, Linalool, Benzyl Salicylate, Benzoic Acid, Phenoxyethanol, Sodium Benzoate, Sodium Bicarbonate, Ascorbic Acid, Ascorbyl Palmitate, Retinyl Palmitate, Retinol, Tocopheryl Acetate, Resveratrol, Ubiquinone, Leuconostoc/Radish Root Ferment Filtrate, Phospholipids, Sodium PCA, Dimethicone, PEG-30 Stearate, Octoxynol-9, BHT, Tetrasodium EDTA, Sorbic Acid
Glycerin
Sodium Hydroxide
Lactobacillus Ferment
Xanthan Gum
Butylene Glycol
Cola Nitida Seed Extract
Pinus Koraiensis Seed Extract
Paullinia Cupana Seed Extract
Ahnfeltia Concinna Extract
Chlorphenesin
Sodium Dehydroacetate
Water, Glycolic Acid, Glycerin, Sodium Hydroxide, Lactobacillus Ferment, Xanthan Gum, Butylene Glycol, Cola Nitida Seed Extract, Pinus Koraiensis Seed Extract, Paullinia Cupana Seed Extract, Ahnfeltia Concinna Extract, Phenoxyethanol, Chlorphenesin, Sodium Dehydroacetate, Sodium Benzoate, Sorbic Acid
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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:
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Sorbic Acid is a preservative that stops your product from spoiling by stopping microbes from growing.
As a preservative, it's kind of a specialist: it has a broad spectrum of activity against yeast and molds but is weaker against bacteria. That's why it's often paired with another preservative to cover that gap.
This ingredient is also pretty picky about pH; it performs best at pH 6.5 or below.
At the right pH level, sorbic acid is "active" and can slip through the outer wall of a microbe. Once inside, it turns the cell's interior more acidic to shut down the microbe from the inside.
The EU caps this ingredient at 0.6% while the CIR has concluded it's safe at concentrations up to 1%. It's most often used around 0.05-0.2% in cosmetics.
Though this ingredient is considered low-sensitizing and well-tolerated, a very small number of people may have a contact allergy to it. Be sure to patch test if you have a history of allergies towards preservatives.
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!