Biologique Recherche Lotion P50W Versus SkinBetter Science AlphaRet Exfoliating Peel Pads

Biologique Recherche Lotion P50W Versus SkinBetter Science AlphaRet Exfoliating Peel Pads

This smoothing toner is formulated around Gluconolactone and Niacinamide to refine skin texture and refine the look of pores.

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

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Gluconolactone

Niacinamide

Glycerin

Propylene Glycol

Lactic Acid

Ethoxydiglycol

Magnesium Chloride

Malic Acid

Arctium Lappa Root Extract

Cochlearia Armoracia Root Extract

Quillaja Saponaria Bark Extract

Arnica Montana Flower Extract

Capsicum Frutescens Fruit Extract

Phytic Acid

Citric Acid

Sodium Lactate

Allantoin

Serine

Sulfur

Vinegar

Sodium Salicylate

Sorbitol

Tea-Lactate

Urea

Sodium Benzoate

Sodium Bisulfite

Water, Gluconolactone, Niacinamide, Glycerin, Propylene Glycol, Lactic Acid, Ethoxydiglycol, Magnesium Chloride, Malic Acid, Arctium Lappa Root Extract, Cochlearia Armoracia Root Extract, Quillaja Saponaria Bark Extract, Arnica Montana Flower Extract, Capsicum Frutescens Fruit Extract, Phytic Acid, Citric Acid, Sodium Lactate, Allantoin, Serine, Sulfur, Vinegar, Sodium Salicylate, Sorbitol, Tea-Lactate, Urea, Sodium Benzoate, Sodium Bisulfite

Alcohol Denat.

Glycolic Acid

Sodium Hydroxide

Ethyl Lactyl Retinoate

Salicylic Acid

Ricinoleth-40

Water, Lactic Acid, Alcohol Denat., Glycolic Acid, Sodium Hydroxide, Ethyl Lactyl Retinoate, Salicylic Acid, Ricinoleth-40

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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.

Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective.

Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin.

Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they’re less likely to sting or irritate, making it a great choice for beginners or those with sensitive skin.

Like glycolic acid, it can:

Lactic acid also acts as a humectant (like hyaluronic acid). It can draw water into the skin to improve hydration and also plays a role in the skin's natural moisturizing factor (NMF) in the form of sodium lactate.

Studies show it can boost ceramide production to strengthen the skin barrier and even help balance the skin’s microbiome.

To get results, choose products with a pH between 3-4.

Lower strengths (5-12%) focus on surface exfoliation; higher strengths (12% and up) can reach deeper in the dermis (deeper, supportive layer) to improve skin texture and firmness over time.

Though it was originally derived from milk, most modern lactic acid used in skincare is vegan. It is made through non-dairy fermentation to create a bio-identical and stable form suitable for all formulations.

When lactic acid shows up near the end of an ingredient list, it usually means the brand added just a tiny amount to adjust the product’s pH.

Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.

Lactic acid is truly a gentle multitasker: it exfoliates, hydrates, strengthens, and brightens. It's a great ingredient for giving your skin a smooth, glowing, and healthy look without the harshness of stronger acids.

Read more about some other popular AHA's here:

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!

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