Pura D'or Smoothing Therapy Shampoo Versus Renpure Biotin & Collagen Thickening Shampoo

Pura D'or Smoothing Therapy Shampoo Versus Renpure Biotin & Collagen Thickening Shampoo

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Aloe Barbadensis Leaf Juice

Sodium Laurylglucosides Hydroxypropylsulfonate

Disodium Laureth Sulfosuccinate

Cocamidopropyl Hydroxysultaine

Stearyldimoniumhydroxypropyl Laurylglucosides Chloride

Disodium Cocoamphodiacetate

Guar Hydroxypropyltrimonium Chloride

Oryza Sativa Bran Extract

Rosmarinus Officinalis Leaf Oil

Helianthus Annuus Seed Extract

Tocopherol

Foeniculum Vulgare Oil

Cymbopogon Schoenanthus Oil

Citrus Aurantifolia Oil

Caprylhydroxamic Acid

Caprylyl Glycol

Glycerin

Citric Acid

Aloe Barbadensis Leaf Juice, Sodium Laurylglucosides Hydroxypropylsulfonate, Disodium Laureth Sulfosuccinate, Cocamidopropyl Hydroxysultaine, Stearyldimoniumhydroxypropyl Laurylglucosides Chloride, Disodium Cocoamphodiacetate, Guar Hydroxypropyltrimonium Chloride, Oryza Sativa Bran Extract, Rosmarinus Officinalis Leaf Oil, Helianthus Annuus Seed Extract, Tocopherol, Foeniculum Vulgare Oil, Cymbopogon Schoenanthus Oil, Citrus Aurantifolia Oil, Caprylhydroxamic Acid, Caprylyl Glycol, Glycerin, Citric Acid

Glycol Distearate

Laureth-4

Sodium Chloride

Methylchloroisothiazolinone

Methylisothiazolinone

Parfum

Water

Coco/Oleamidopropyl Betaine

Sodium C14-16 Olefin Sulfonate

PEG-4 Rapeseedamide

Biotin

Hydrolyzed Collagen

Cocos Nucifera Oil

Theobroma Cacao Extract

Hydrolyzed Pea Protein

Aesculus Hippocastanum Seed Extract

PEG-7 Dimethicone

Laureth-7

Polysorbate 20

Glycol Distearate, Laureth-4, Citric Acid, Sodium Chloride, Methylchloroisothiazolinone, Methylisothiazolinone, Parfum, Water, Coco/Oleamidopropyl Betaine, Sodium C14-16 Olefin Sulfonate, PEG-4 Rapeseedamide, Glycerin, Biotin, Hydrolyzed Collagen, Cocos Nucifera Oil, Guar Hydroxypropyltrimonium Chloride, Theobroma Cacao Extract, Hydrolyzed Pea Protein, Aesculus Hippocastanum Seed Extract, PEG-7 Dimethicone, Laureth-7, Polysorbate 20

Alternatives

Ingredients Explained

These ingredients are found in both products.

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

Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.

Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.

However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.

Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.

In skincare formulas, citric acid can:

While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.

Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.

Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.

However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.

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.

This ingredient is derived from guar gum. It is a skin conditioning agent that creates a thin, breathable film to reduce water loss during cleansing.

This leaves the skin feeling soft rather than stripped and also contributes to a creamier lather.

Due to the large molecule size, this ingredient is unlikely to penetrate skin.

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