
Our reason for being
We are a group of thinkers and aficionados in the personal care space bonded by our shared passions and idealisms for beauty and self-care.
We are united in our mission to create products that look, smell and feel as good as they worked.
Only the best
Great products take time and effort to develop.
From sourcing premium natural ingredients globally to getting the perfect formulation and product design, our commitment to absolute quality requires us to give undivided attention in the whole product development process.
Qualified and Certified
Our team of chemists, dermatologists and product specialists have more than 30 years of experience in the beauty industry formulating and manufacturing beauty products for numerous brands. Our manufacturing plant possess the following certifications:
- GMP
- ISO 9000-2015
- ISO 22716
- JAKIM Halal
- ACO (Australia Certified Organic)

Our reason for being
We are a group of thinkers and aficionados in the personal care space bonded by our shared passions and idealisms for beauty and self-care.
We are united in our mission to create products that look, smell and feel as good as they worked.
Only the best
Great products take time and effort to develop.
From sourcing premium natural ingredients globally to getting the perfect formulation and product design, our commitment to absolute quality requires us to give undivided attention in the whole product development process.
Qualified and Certified
Our team of chemists, dermatologists and product specialists have more than 30 years of experience in the beauty industry formulating and manufacturing beauty products for numerous brands. Our manufacturing plant possess the following certifications:
- GMP
- ISO 9000-2015
- ISO 22716
- JAKIM Halal
- ACO (Australia Certified Organic)
At the Overthink Co.
We are committed to overthinking and thinking over everything to provide only the best for you, our customer.
That’s our culture
We overthink to overdeliver.

WHO (World Health Organization) recommends alcohol-based sanitisers for rapid and most effective inactivation of a wide array of potentially harmful bacteria & virus on our hands.
The Overthink Co.'s skin-care inspired hand sanitiser is a Japanese formulation with:

70% Top-Grade Ethanol
Evaporates in seconds without drying the skin.

100% Premium and pure essential oils
Infused with Essential Oil, its premium aroma relaxes and uplifts your mind.

Moisturising serum and menthol
Moisturises, nourishes, and energizes tired hands with a powdery and cooling after feel.

0% fragrance
Sanitisers with fragrance, frequently found in the current market, may cause skin irritation and nausea.
However, The Overthink Co.’s Sanitiser has 0% fragrance & its scent is derived 100% from the generous concentration of Premium and Pure Essential Oils sourced from Europe.

0% paraben
The Overthink Co.’s Sanitisers contain 0% Paraben to ensure that you and your loved ones are safe from allergies and carcinogens.
0% triclosan
Triclosan is a harmful antibacterial and antifungal agent that can result in skin irritations and allergic reactions when absorbed through the skin, especially for children.

Vigorously tested
Vigorously tested to kill 99.99974% (highest % in the industry) of germs, bacteria, and coronavirus.
The Overthink Co.'s skin-care inspired hand sanitiser is a Japanese formulation with:

70% Top-Grade Ethanol
Evaporates in seconds without drying the skin.

100% Premium and pure essential oils
Infused with Essential Oil, its premium aroma relaxes and uplifts your mind.

Moisturising serum and menthol
Moisturises, nourishes, and energizes tired hands with a powdery and cooling after feel.

0% fragrance
Sanitisers with fragrance, frequently found in the current market, may cause skin irritation and nausea.
However, The Overthink Co.’s Sanitiser has 0% fragrance & its scent is derived 100% from the generous concentration of Premium and Pure Essential Oils sourced from Europe.

0% paraben
The Overthink Co.’s Sanitisers contain 0% Paraben to ensure that you and your loved ones are safe from allergies and carcinogens.
0% triclosan
Triclosan is a harmful antibacterial and antifungal agent that can result in skin irritations and allergic reactions when absorbed through the skin, especially for children.

Vigorously tested
Vigorously tested to kill 99.99974% (highest % in the industry) of germs, bacteria, and coronavirus.
The Overthink Co.'s skin-care inspired hand sanitiser is a Japanese formulation with:

Top-Grade Ethanol
Evaporates in seconds without drying the skin.

100% Premium and pure essential oils
Hydrates with Essential Oil, its premium aroma relaxes and uplifts your mind.



Fall in love with your hands all over again
Wet your hands with 4 full sprays (8 sprays for 20ml) and rub them together.
Magic will happen after the sanitiser instantly evaporates – feel the soft matte finish of the fine droplets as it moisturises your skin and smooth lines. Feel refreshed with the gentle cooling effect that follows as it energises your tired hands while the premium and pure essential oils envelopes the air with a lingering, relaxing scent to relax and uplift your mind.
Every spray is an immersive romantic experience; you will find yourself subconsciously caressing your hands, smelling them, and falling in love with your hands all over again.
Caution: The Overthink Co.’s Skincare-inspired Essential Oil Hand Sanitiser is extremely addictive.
最高級エッセンシャルオイル
細菌とウイルスを99.999%殺菌

Fall in love with your hands all over again
Wet your hands with 4 full sprays (8 sprays for 20ml) and rub them together.
Magic will happen after the sanitiser instantly evaporates – feel the soft matte finish of the fine droplets as it moisturises your skin and smooth lines. Feel refreshed with the gentle cooling effect that follows as it energises your tired hands while the premium and pure essential oils envelopes the air with a lingering, relaxing scent to relax and uplift your mind.
Every spray is an immersive romantic experience; you will find yourself subconsciously caressing your hands, smelling them, and falling in love with your hands all over again.
Caution: The Overthink Co.’s Skincare-inspired Essential Oil Hand Sanitiser is extremely addictive.
最高級エッセンシャルオイル
細菌とウイルスを99.999%殺菌
4 Variants to Choose From:

Lavender

Geranium

Peppermint + Eucalyptus

Lemongrass

Lavender

Peppermint + Eucalyptus

Geranium

Lemongrass
KILL 99.99974% OF GERMS AND CORONAVIRUS


Frequently Asked Questions
Got some questions? We've got the answers.
sanitiser must be alcohol based. And it must state “Hand Sanitiser” in the packaging with NPRA approval. A disinfectant is NOT a hand sanitiser. Disinfectants are harsh & usually used for surfaces (eg floor cleaners), this may cause stickiness & irritation to your hands. WHO (World Health Organisation) recommends alcohol-based sanitisers as the only known means for effectively inactivating harmful microorganisms.
It is the most well-thought sanitiser that contains 100% Premium & PURE essential oils for aromatherapy, kills more bacteria than most sanitisers in the market with 99.99974% tested results, and takes care of your hands with fine moisturising serum.
After you sanitise your hands, the essential oils will stay on your skin and work as aromatherapy.
Because this is a leave-on product (not rinse-off product), an overdose of fragrance may cause skin irritation and nausea. Hence we only use 100% PURE essential oils to replace the smell of artificial fragrances.
Paraben is a preservative linked to harmful side effects such as allergic reactions and cancer. Hence 0% paraben is to avoid allergies and carcinogens.
The antibacterial compound Triclosan has been linked to human health problems. Absorption through the skin can result in skin irritations and allergic reactions, especially in children. Hence the benefit of 0% Triclosan.
They are made from 4 different 100% Premium & PURE essential oils that create unique aromatherapeutic experiences.
Hospital researchers recommend rubbing 2ml (~4 sprays for 100ml / 6 sprays for 20ml) on both hands. For electronic items e.g. remote control, laptop, handphone, use 1-2 full sprays and wipe, don’t leave it wet.
Yes, it definitely can. It will leave a pleasant aromatherapy scent, improving holistic well-being. However, it may not be economically advisable if it is used as disinfectant in large quantities.
Yes, it is tested to kill 99.99974% of all germs, bacteria and coronavirus.
Yes. Alcohol-based hand sanitiser is safe to be used by children, with adult supervision. Here are some additional guidelines from FDA.
- Be especially careful not to get hand sanitiser in your eyes because it can cause burning and damage to the surface of the eye. Watch young children around dispensers containing hand sanitiser, which are often mounted at eye level and can splash.
- Do not drink hand sanitiser. This is particularly important for young children, especially toddlers, who may be attracted by the pleasant smell or brightly colored bottles of hand sanitiser. Drinking even a small amount of hand sanitiser can cause alcohol poisoning in children. (But there is no need to be concerned if your children eat with or lick their hands after using hand sanitiser.)
- Do not use hand sanitiser contaminated with potentially toxic types of alcohol. Centers for Disease Control and Prevention (CDC) recommend consumers use an alcohol-based hand sanitiser that contains at least 60 percent ethanol (also referred to as ethyl alcohol).
Yes. It is risk-free to use on hands or objects.
Recently, hand sanitisers were recalled by the Health Sciences Authority (HSA) due to the detection of high levels of the chemicals acetaldehyde and/or methanol exceeding the pharmaceutical limit.
Please be assured that The Overthink Co. Aroma Hand Sanitiser complies
with all WHO/ NPRA/ HSA standards, and our products are 100% safe to use.
Frequently Asked Questions
Got some questions? We've got the answers.
sanitiser must be alcohol based. And it must state “Hand Sanitiser” in the packaging with NPRA approval. A disinfectant is NOT a hand sanitiser. Disinfectants are harsh & usually used for surfaces (eg floor cleaners), this may cause stickiness & irritation to your hands. WHO (World Health Organisation) recommends alcohol-based sanitisers as the only known means for effectively inactivating harmful microorganisms.
It is the most well-thought sanitiser that contains 100% Premium & PURE essential oils for aromatherapy, kills more bacteria than most sanitisers in the market with 99.99974% tested results, and takes care of your hands with fine moisturising serum.
After you sanitise your hands, the essential oils will stay on your skin and work as aromatherapy.
Because this is a leave-on product (not rinse-off product), an overdose of fragrance may cause skin irritation and nausea. Hence we only use 100% PURE essential oils to replace the smell of artificial fragrances.
Paraben is a preservative linked to harmful side effects such as allergic reactions and cancer. Hence 0% paraben is to avoid allergies and carcinogens.
The antibacterial compound Triclosan has been linked to human health problems. Absorption through the skin can result in skin irritations and allergic reactions, especially in children. Hence the benefit of 0% Triclosan.
They are made from 4 different 100% Premium & PURE essential oils that create unique aromatherapeutic experiences.
Hospital researchers recommend rubbing 2ml (~4 sprays for 100ml / 6 sprays for 20ml) on both hands. For electronic items e.g. remote control, laptop, handphone, use 1-2 full sprays and wipe, don’t leave it wet.
Yes, it definitely can. It will leave a pleasant aromatherapy scent, improving holistic well-being. However, it may not be economically advisable if it is used as disinfectant in large quantities.
Yes, it is tested to kill 99.99974% of all germs, bacteria and coronavirus.
Yes. Alcohol-based hand sanitiser is safe to be used by children, with adult supervision. Here are some additional guidelines from FDA.
- Be especially careful not to get hand sanitiser in your eyes because it can cause burning and damage to the surface of the eye. Watch young children around dispensers containing hand sanitiser, which are often mounted at eye level and can splash.
- Do not drink hand sanitiser. This is particularly important for young children, especially toddlers, who may be attracted by the pleasant smell or brightly colored bottles of hand sanitiser. Drinking even a small amount of hand sanitiser can cause alcohol poisoning in children. (But there is no need to be concerned if your children eat with or lick their hands after using hand sanitiser.)
- Do not use hand sanitiser contaminated with potentially toxic types of alcohol. Centers for Disease Control and Prevention (CDC) recommend consumers use an alcohol-based hand sanitiser that contains at least 60 percent ethanol (also referred to as ethyl alcohol).
Yes. It is risk-free to use on hands or objects.
Recently, hand sanitisers were recalled by the Health Sciences Authority (HSA) due to the detection of high levels of the chemicals acetaldehyde and/or methanol exceeding the pharmaceutical limit.
Please be assured that The Overthink Co. Aroma Hand Sanitiser complies
with all WHO/ NPRA/ HSA standards, and our products are 100% safe to use.