Water is a great solvent. It’s neutral and doesn’t provide any strong positive or negative effects. It just helps components to mix better and to transport active components.
Propylene Glycol is a useful componet with many positive effects. It’s a very good moisturizer. It helps to deliver ingredients into deeper layers of the skin. It creates a protective layer on the skin preventing water loss. The component is researched very well and doesn’t have notable side effects. It’s used even for making food.
Helianthus Annuus (Sunflower) Oil is an ingredient known from ancient times. It’s the oil people receive from Sunflower Seeds and use for different purposes, including cooking. It contains a lot of Lenoic acid which moisturizes the skin, makes it softer, and reduces inflammation. The oil also works as an occlusive agent that forms a protective film and helps to keep skin hydrated.
As for haircare, it’s the second most popular basic oil used in haircare products. It helps to lower hair fragility and make hair softer.
Biotin is also known as Vitamin H or Vitamin B7. It is an amazing chemical, but only if you take it inside as a supplement. Will it work if you apply it to the skin? There is not enough scientific data that can prove its efficiency as a cosmetic component. But manufacturers say it can smooth the skin and improve the look of your hair.
Panthenol is a proud member of a league of the best-performing components. It's a stable form of Vitamin B5 and is also known as Pro-Vitamin B5. It’s a very good and effective component for hydration, healing, and soothing irritated skin. It works so soft and gentle that it’s even recommended for people with skin problems like eczema.
In haircare products it’s used for protecting the fiber. It’s researched very well and doesn’t have any negative side effects.
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Cetrimonium Chloride (As An Anti-Static Agent
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En Tant Qu'agent Anti-Statique)
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Menthyl Lactate
Roles: Flavoring, Fragrance, Masking
Soothing
Tones up skin
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Menthol
Roles: Flavoring, Fragrance, Masking
Good for oily skin
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PEG-40 Hydrogenated Castor Oil
Roles: Emulsifying, Fragrance, Surfactant
Cleansing
Soothing
Malassezia unsafe
PEG
PEG-40 Hydrogenated Castor Oil helps ingredients to mix better. It has nice cleansing activity helping to remove sebum and dirt from the surface of your skin. It's also responsible for making soft foam in soaps, shower gels, etc. Despite it having "PEG" in the title, it's considered to be safe.
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Ethylhexyl Methoxycinnamate
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Avobenzone
UV Protection
Avobenzone is the only chemical UV-protection component with a broad spectrum coverage. It can help to block both UVA I and UVA II rays. It's safe and it is allowed to use at a 3% concentration in the USA and a 5% concentration in the EU countries.
There is one problem: avobenzone loses efficiency when exposed to the sun. If you are outside, it loses 36% of its ability to block UV rays an hour after application. That's why it's recommended to reapply sunscreen every 2 hours.
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BHTAntioxidant
Roles: Fragrance, Masking
BHT is a stabilizer and antioxidant. It helps to keep the product fresh for a long time, preventing the oxidization of components. It is stable even in high temperatures, that’s why it’s an essential component in some products. It also protects the skin from free radicals. As for safety, the component isn't researched very well. It’s considered to be safe in low concentrations. But there is still not enough scientific data collected.
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Disodium EDTA
Roles: Chelating, Viscosity controlling
Disodium EDTA is an emulsion stabilizer and chelating agent. It deactivates the metal ions preventing them from reacting with other active ingredients. It improves the stability of a cosmetic formula and keeps the product’s consistency, texture, and pH unchanged. It doesn’t have any skincare effects and is used for formulation purposes only.
Vitamin C is known for its strong antioxidant activity. It helps to slow down aging processes. The other positive effect of this ingredient is that it helps to make skin tone even. It's a great ingredient to counter dark areas and uneven skin tone. It's well-researched and considered safe. But it's acid and can irritate the skin if used too often.
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Sodium Lauryl Sulfoacetate
Roles: Cleansing, Foaming, Surfactant
Sulfates
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Citric AcidAntioxidantAHA
Roles: Buffering, Chelating, Fragrance, Masking
Cleansing
Exfoliating
Soothing
Lightening
Lifting
Hair growth stimulating
Citric Acid is one of the AHAs and it is a super useful component! It’s a great antioxidant. It acts as a soft peeling that removes dead cells and kills bacteria. It becomes even more effective if used with other cosmetic acids. Combined formulations are more active, but can irritate sensitive skin if used too often. The component can also whiten the skin and remove dark areas.
It can be an irritator due to its naturally lower pH level of 2.2. But manufacturers also use it as a pH adjuster so in most cases you will not have any issues.
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Polyquaternium-10
Roles: Antistatic, Film former, Hair fixative
Softening
Antistatic
Hair conditioning
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Phenoxyethanol
Roles: Fragrance, Preservative
Antiseptic
Phenoxyethanol is one of the most popular preservatives. It kills bacteria and makes the product live longer. Manufacturers like this ingredient because it can dissolve in any liquid, even in oils.
Another purpose of this component is the fixation of aromas in perfumery. Phenoxyethanol is also used as a strong antiseptic and a good antibacterial agent. It is widely used in dermatological cosmetics alongside natural antiseptics such as chamomile, sage, and calendula.
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Potassium Sorbate
Roles: Fragrance, Preservative
Antifungal
Antiseptic
Potassium Sorbate is a preservative that increases the shelf life of the product. It’s a great alternative to parabens. That's why manufacturers like to use this component. It is safe in concentration of up to 10% but it is used in cosmetics in amounts of 1% or even lower.
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Fragrance
Roles: Deodorant, Fragrance, Masking
Fragrances
Fragrance is a mix of chemical ingredients (usually 20-30 chemicals but up to 200 sometimes) that help the product to smell better. It can hide many bad things. Synthetic fragrances may contain many different chemicals, but manufacturers don’t want to reveal each of them for some reason and hide them behind the word "Fragrance".
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Benzyl Salicylate
Roles: Fragrance, Masking
UV Protection
Allergens
Benzyl Salicylate is a fragrance component with a pleasant flower odor. It can be an allergy trigger and should be used carefully. Pay attention to this ingredient in a formulation if you have sensitive skin or if you have an allergy.
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Eugenol
Roles: Fragrance, Masking
Allergens
Eugenol is a fragrance and one of the ingredients you should use carefully. It is in the list of 26 European Union fragrances that have to be labeled separately because of allergen potential. Laboratory studies show that the component is cytotoxic even at low concentrations. But no studies were performed on humans. In general, it's not the best skincare component.
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Geraniol
Roles: Fragrance, Masking
Allergens
Geraniol is a fragrance ingredient that gives product a nice rose scent. That’s why it’s used by many manufacturers. In addition to its pleasant scent, it also provides an antifungal effect increasing the shelf life of a product. There are several ways of obtaining this ingredient but all of them are chemical.
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Limonene
Roles: Fragrance
Antiseptic
Allergens
Limonene provides a nice and fresh citrus scent. It can be found in many plants. It's used in cosmetics because of its low price and pleasant smell.
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Linalool
Roles: Deodorant, Fragrance, Masking
Allergens
Linalool gives the product a nice and fresh lavender scent. It can be found in many essential oils. It oxidizes during air exposure and becomes allergenic. It can lead to irritation causing problems for people with sensitive skin. The threat is even higher if the product was opened several months ago. In such products, more Linalool is oxidized.