Best Hair Mask

S.OIL is a hybrid luxury hair oil combining nutrient rich vitamins and minerals with fast absorbing, lightweight organic and eco-certified ingredients, resulting in naturally stronger, shinier and healthier hair.

Developed by Three Squares Studio,

Est. 2009 in NYC

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Serum + Oil


Clove + Grapefruit

S.OIL provides super nutrients to your hair, strengthening and protecting against chemical, mechanical and environmental damage.

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Serum + Oil


Sandalwood + Clove

S.OIL provides super nutrients to your hair, strengthening and protecting against chemical, mechanical and environmental damage.

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Serum + Oil


Lavender, Vanilla + Bergamot

S.OIL provides super nutrients to your hair, strengthening and protecting against chemical, mechanical and environmental damage.



Three Squares Studio introduces S.OIL. Founded by renowned celebrity hairstylist Jordan Blackmore and esteemed hair industry veteran Niq Ellis with the goal of developing toxic-free beauty products of the highest quality using absolutely zero dangerous or harmful chemicals. When creating S.OIL, we didn’t want to compromise on any detail.

We incorporated proven natural remedies to deliver high-performance, treatment based products all while never forgetting that healthy hair is our single most important intention. Each product has been clinically tested at length by dermatologists to ensure that they deliver results safely, leaving you with the strongest, shiniest and healthiest hair possible.

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+1 (917) 847-3384

How to S.OIL

Apply S.OIL to smooth, style or add shine.
Here are some of our favorite suggestions for use.

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Why not? You have a choice to reward your hair so treat yourself, don’t cheat yourself. Our toxic-free formula provides extensive health benefits thru nutrient rich vitamins and minerals that are sure to take your hair to the next level. You win!


Every ingredient matters. We believe in the power of all-natural, organic and eco-certified ingredients. Our products are among the safest in the world! We say NO to parabens, sulfates, gluten, artificial colors, ammonia and silicone. Our products are dermatologist and allergy tested, safe for sensitive skin and never tested on animals. #Facts #WeLoveAnimals


We’re committed to a strict health and safety standard. ToxicFree® certified products are guaranteed to be completely free from harmful chemicals and contain only ingredients that are 100% natural and from the Earth. ToxicFree® certified products are manufactured sustainably and are safe for both you and the environment.


Yes, we’re biased, but we also have more than 30 years of experience in the hair care industry. We’ve used hundreds of products and S.OIL truly stands out as our favorite. We’re confident S.OIL will be your favorite too! Subscribe to our email list and we’ll send you a complimentary sample to try before you buy.


Short-term results from products that contain toxic chemicals often involve long-term health risks to the skin, body and hair. Trust matters. That’s why we list every single ingredient on our packaging. The beauty industry is self-regulated. According to U.S. federal law, companies don’t have to list every ingredient in their product or do safety testing.
That’s just not our style.

New! Three Squares Soil Gives Your Hair The Best Mask For Strong and Healthy Looking Hair

Benefits of a Good Hair Mask

Hair masks are typically quick fixes to even out split ends or to moisturize hair after a dye job. However, there are long-term benefits from regularly applying hair masks for both the locks and scalp.

Hair masks can actually be better for hair than regularly-applied conditioners since they are more deeply absorbed by the hair cuticle, unlike conditioners which don’t make it past the strand’s surface and washes away. Good, quality masks also close the cuticle, meaning less frizz and shinier hair.

Hair masks can also improve the surface of the scalp because regular maintenance through hair masks works to remove scalp build-up left over from repeat shampoo and conditioner washes.

Regular application of masks leaves hair shinier and stronger, as certain types of masks repair and close cuticles, locking in moisture.

Choosing the Right Hair Mask

The only way to reap the benefits of a good hair mask is knowing which types of products to use with which hair type. Below are tips to correctly match the product with the different hair types:

Fine, Thin Hair

Because finer hair means more fragile hair, selecting the right type of hair mask is important. Masks that offer a hydrating treatment for dry hair are the best ones to use. Hair mask treatment can often be heavy for fine hair, so only apply to mid-lengths and ends – not at the root.

Greasy Locks

Green clay masks work best for those with greasy hair, so avoid masks that offer hydration as a selling point. Similar to using masks with fine, thin hair, avoid applying it to the roots; remember to choose masks that are more appropriate for use of mid-lengths and ends of strands.

Dry, Frizzy, Curly Hair

The one thing dry, frizzy and curly hair types have in common is dehydration – that is why similar to the fine hair treatment, opt for hair mask products that offer a long-lasting nourishing treatment such as keratin-based masks. Leaving the hair mask on for 10 minutes for ultimate absorption can lead to the best results for this hair type.

Dyed Hair

Colored hair tends to need special treatment, so using hair masks made specifically for dyed hair can help to keep it well-nourished and hydrated as well as preserve the color.

As dyed hair is often dehydrated as a result of the coloring process, an alternative is using a hair mask designed for overly dry hair. For this type, applying the mask on the ends can help with excessive dryness.

Hair Mask Tips You Should Know

With so many different types of hair mask products on the market, questions arise as to length and frequency of usage, as well as the warning signs of a bad mask. Here are a couple of tips that will make it easier for first-time mask users.

  • Using a hair mask once a week will ensure healthy and strong hair throughout the whole year and changing weather conditions. That is why, one of the main benefits of weekly treatments is well-nourished hair.
  • With so many hair masks on offer in the hair treatment market, not all require the same treatment. While lighter hair masks might need to be used once a week, others might require heavier treatments of once or twice a week. The duration the mask stays on could also differ, from just a minute to more than 20 minutes. Knowing the product will lead to better results.
  • Allowing for a hair mask to soak during the night should result in silky, vibrant hair. The masks can be applied after a shower on wet hair or on dry hair and covered with a shower cap, plastic bag, or silk scarf.
  • Quality hair masks are designed to restore moisture and give hair volume, not grease. Greasy locks after application could mean the mask is too heavy for a particular hair type or that there was too much applied – only a little of the hair mask will lead to good results.
  • Hair masks are more effective when spread evenly to the end of the strands by using a wide tooth comb before letting the mask rest. This method is helpful for thicker hair to help ensure the product is distributed throughout.
  • Shampooing and conditioning after allowing the mask to rest within the allotted time gets rid of any product build-up and leaves hair in top shape.

About Our Hair Mask Products

Reward your hair by using the best hair mask in hair care products: S.OIL. The all-natural formula used to create S.OIL means treating your hair to the best on the market. Nutrient-rich vitamins and minerals found in all of our hair mask products guarantee that you won’t compromise on quality when it comes to restoring and maintaining your lovely locks.

Every product we offer you is made from completely organic and eco-certified ingredients so you can rest assured that our products have never been tested on animals and have been proven safe for allergies and sensitive skin.

Unlike the other products being offered on the market, you won’t find parabens, sulfates, gluten, artificial colors, ammonia and silicone in our line of S.OIL products. All our products are Toxic-Free certified, as well, which means they are free from harmful chemicals and manufactured sustainably so they are safe for you and the environment.

Moreover, the use of all-natural products is what sets us apart from the rest. Products on the market containing toxic chemicals might offer short-term results but pose long-term health hazards to the skin, body and hair. It can be hard to tell which products contain harmful chemicals as companies in the healthcare industry are not required to include an ingredient list on their products. However, we do because we have nothing to hide.

With more than 30 years of experience in the hair care industry, we can confidently say that S.OIL offers you an unparalleled experience when it comes to hair care. If you don’t believe us, try it. Subscribe to our email list and we’ll send you a complimentary sample to try before you buy.