Overview
What it is
Nail care with 8 ingredients
Cool Features
It is cruelty-free and reef safe
Suited For
It has ingredients that are good for dry skin, sensitive skin, oily skin and scar healing
Free From
It doesn't contain any harsh alcohols, common allergens, parabens, silicones or sulfates
Fun facts
Onsen Secret is from United States. This product is used in 2 routines created by our community.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Explained
This ingredient is also known as olive oil. It has been used in skincare for centuries and science largely backs up its reputation as a nourishing emollient.
The main components of olive oil are oleic acid (55-83%), linoleic acid (3.5-20%), and palmitic acid (7-20%). Oleic acid promotes skin regeneration and helps regulate inflammatory responses.
Squalene is also naturally present in olive oil and exhibits moisturizing and antioxidant properties.
The polyphenols in olive oil also show anti-aging promise; one clinical study found a measurable improvement in skin appearance after 30 days of topical serum use.
Just be aware that applying olive oil directly to skin can weaken the barrier and cause redness. One study with volunteers found even people without sensitive skin experienced a significant reduction in stratum corneum integrity and induced mild erythema.
It's best to use this ingredient as part of a carefully crafted formula (instead of putting it on skin directly from the bottle).
Because it has a 2-3 on the comedogenic scale, it is a moderate risk for acne-prone skin. However, the overall formulation of a product matters more than a few ingredients with comedogenic ratings.
This ingredient may not be fungal acne safe because of the oleic and palmitic acid content. These fall within the C11-24 fatty acid range that the Malassezia yeast can metabolize to grow.
Overall, olive oil is a well-studied and nourishing skincare ingredient.
Learn more about Olea Europaea Fruit OilCamellia Japonica Seed Oil comes from the Japanese Camellia plant. This plant is native to East Asia and known as "Tsubaki" in Japanese.
Camellia Japonica Seed Oil is rich in oleic acid. This makes it a great emollient. Emollients help soften and soothe the skin by forming a barrier. This barrier traps moisture within, keeping your skin hydated.
Jojoba oil is one of the most well-studied plant-derived ingredients in cosmetics. It is an emollient with a special structure.
Because it is made up of 97-98% wax esters, it closely mirrors the linear monoesters found in human sebum. This makes it skin compatible, non-greasy, and lightweight.
Unlike other plant oils, jojoba wax doesn't easily penetrate skin. It mostly works in the uppermost layers as an emollient. This just means it forms a light barrier on the skin to help retain moisture.
Formulations with jojoba esters up to 90% reduced transepidermal water loss (TEWL) and increased barrier recovery by 81% (outperforming bisabolol at 47%).
Besides barrier support, the science also suggests jojoba to have anti-inflammatory effects and potential applications for skin infections, aging, and wound healing.
Fun fact: Indigenous cultures have used jojoba as a moisturizer and to help treat burns for centuries.
Due to its fatty acid content, Jojoba oil may not be fungal acne safe.
Learn more about Simmondsia Chinensis Seed OilRosehip oil is an emollient. It comes from the sweet-brier plant native to Europe and western Asia.
This ingredient is rich in Vitamin E, Vitamin C, linoleic acid, and other fatty acids, making it a great skin hydrator.
Another component of Rosa Rubiginosa is tretinoin, or trans-retinoic acid. Tretinoin is an anti-aging ingredient. However, the efficacy of this tretinoin depends on how the oil is extracted.
Due to the rich fatty acid content, this ingredient may not be fungal-acne safe.
Learn more about Rosa Rubiginosa Seed OilRosehip Oil is a non-fragrant plant oil. Rosehips are a fruit from a rose bush and are edible. This oil has skin conditioning and hydrating properties.
Rosehip contains Vitamin C, Vitamin E, fatty acids and linolenic acids. These nourish your skin barrier. Having hydrated skin may help reduce the appearance of fine-lines and wrinkles.
Another great component of Rosehip Oil is Vitamin A, or retinol. Vitamin A encourages your skin to create more collagen.
Rosehip oil may help with reducing pigmentation. The lycopene and beta-carotene have skin-lightening properties. However, more studies are needed to confirm this.
Learn more about Rosa Canina Fruit OilRicinus Communis Seed Oil is the INCI name for castor oil.
Castor Oil helps moisturize the skin. It is rich in a fatty acid called ricinoleic acid. This fatty acid helps prevent moisture loss on the skin. This helps keep your skin soft and hydrated. Ricinoleic acid also has anti-inflammatory and pain reducing properties.
Besides hydrating the skin, castor oil is also used to hydrate hair. By keeping the hair shaft moisturized, breakage is decreased. More studies are needed to show castor oil's effective on stimulating hair growth.
Castor oil is created by cold-pressing castor seeds and then purifying the oil with heat. It was used in Ancient Egypt as fuel in lamps and to help treat eye irritation.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about Ricinus Communis Seed OilThis oil comes from the outer layer (bran) of rice grains. It is packed with skin-friendly fatty acids to soften and condition the skin while supporting your moisture barrier.
What makes it stand out from other plant oils is its naturally high concentration of gamma-oryzanol, a potent antioxidant. This antioxidant has shown some UV-absorptive properties in research.
Other antioxidants found in this oil include tocopherols, tocotrienols, and ferulic acid.
According to manufacturers, this oil has a lightweight texture that absorbs nicely.
The CIR (Cosmetic Ingredient Review) has concluded this ingredient to be safe as used in cosmetics and it has not shown to be a skin sensitizer in testing (unless you have a known rice allergy).
Due to the fatty acids (primarily Oleic Acid ~40%, Linoleic Acid ~30%, and some Palmitic Acid), this ingredient may not be fungal acne safe.
Learn more about Oryza Sativa Bran OilThis tea tree oil comes from the leaves of the Tea Tree plant. Tea tree oil has antioxidant, anti-inflammatory, and antimicrobial properties.
According to the book Journal of Profiles of Drug Substances, tea tree helps in reducing acne-causing bacteria such as Propionibacterium acnes. This is due to the Terpinen components of tea tree oil.
Tea tree may cause sensitivity and irritation for some people. This oil naturally contains fragrance such as linalool and limonene.
However, research shows irritation usually occurs when using pure tea tree oil and not in cosmetic products.
Tea tree oil was found to help relieve the symptoms of psoriasis in one study.
Tea tree oil is toxic when ingested. Another study showed it to caused damage to the nervous system of dogs and cats when applied to their skin or given orally.
Learn more about Melaleuca Alternifolia Leaf OilReviews
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Where it's from
Onsen Secret is a American brand
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about usยท Updated December 9, 2023 • Added by Ninjakate
