Spinster Sisters Hyaluronic Acid + Vitamin C Serum Stick
A serum with 9 ingredients, including hyaluronic acid.
Overview
What it is
Serum with 9 ingredients that contains hyaluronic acid
Cool Features
It is cruelty-free and reef safe
Suited For
It has ingredients that are good for anti aging, dry skin, sensitive skin, oily skin, scar healing and dark spots
Free From
It doesn't contain any harsh alcohols, parabens, silicones or sulfates
Fun facts
Spinster Sisters is from United States. This product is used in 1 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
Baobab seed oil is an emollient. It is rich in fatty acids and vitamins A, E, and D.
The fatty acid content of this oil is roughly 30-40% oleic acid, 24-34% linoleic acid, and 18-30% palmitic acid. This gives it skin hydrating and nourishing properties.
Due to this fatty acid content, this ingredient may not be fungal-acne safe.
Fun fact: Our skin uses fatty acids, and especially linoleic acid, for creating ceramides.
Learn more about Adansonia Digitata Seed OilJojoba 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 OilSclerocarya Birrea Seed Oil is the oil expressed from the seeds of the Marula plant. In South Africa, Marula is called "an elephant's favorite treat".
Marula seed oil is a non-fragrant oil. It is rich in fatty acids, such as oleic, linoleic, palmitic, stearic, and more. These fatty acids help hydrate the skin.
Other components of marula seed oil include vitamin E and antioxidants such as flavonoids.
Due to the fatty acid content, this ingredient may not be fungal-acne safe.
Learn more about Sclerocarya Birrea Seed OilArnica Montana Flower is more commonly known as Wolf's Bane. While this flower has been used in traditional medicine, its skin benefits are in question.
The FDA considers Wolf's Bane to be an unsafe herb. They advise against taking it orally or applying it to broken skin.
Wolf's Bane has been said to have anti-inflammatory properties. However, studies are conflicting about whether this is true.
According to the Final report on the safety assessment of Arnica montana, this plant has not been found to cause dermal irritation.
This flower contains numerous fatty acids such as palmitic, linoleic, myristic, and linolenic acids. The presence and amount of fatty acids depends on where the flower is harvested.
Like other flowers, this ingredient has a natural fragrance. It can also be used to mask, or cover, the unpleasant scents from other ingredients.
Learn more about Arnica Montana Flower ExtractYou may know this ingredient as argan oil. It has emollient and skin conditioning properties that help soften skin and reinforce the lipid barrier.
The fatty acid profile of argan oil is roughly 45-55% oleic acid, 28-36% linoleic acid, 10-15% palmitic acid, and 5-7% stearic acid. It also contains vitamin E, sterols, squalene, and polyphenols like ferulic acid.
Two clinical studies in postmenopausal women found that applying argan oil for 60 days significantly improved skin elasticity and moisturization (reduced transepidermal water loss and increased epidermal water content).
Since it is high in oleic and linoleic acid, this ingredient may not be fungal acne safe. Both of these fall in the C11-C24 range that Malassezia yeast can metabolize.
Learn more about Argania Spinosa Kernel OilPelargonium Graveolens Oil is the pressed oil of the Rose Geranium plant. It has perfuming and masking properties.
This ingredient contains citronellol and geraniol. These compounds may cause allergies and skin-sensitivity.
The scent of Rose Geranium closely resembles. you guessed it: roses.
Learn more about Pelargonium Graveolens OilCandelilla Cera isn't fungal acne safe.
Blue tansy is a blue flower native to the Mediterranean. It has antioxidant, skin cooling, and perfuming properties.
This ingredient is currently being studied for its antifungal properties. While it does have antioxidant benefits - it may not be the best for sensitive skin (despite being advertised as so).
The cooling effect from blue tansy comes from its camphor content. Camphor is known to induce irritation in concentrations higher than 11%. It also contains another skin irritant, beta-pinene.
Learn more about Tanacetum Annuum Flower OilSodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
Learn more about Sodium HyaluronateReviews
Where it's from
Spinster Sisters 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 March 23, 2026 • Added by kendralesar
