Complimentary Standard Shipping on all orders over $25

Frequently Asked Questions


Product Questions


All our products are made in our studio in Miami, USA. We don’t outsource any aspects of the production, so we can unconditionally guarantee the potency and purity of our skin care.

No, we do not. Our products are 100% natural

If you’re already conscious about the foods that you eat, and the way that they’re prepared and grown than the next step is to bring that same awareness to your skincare products. Many people still don’t realize that, but skin is our largest organ and what we put on our skin goes directly into our bloodstream in a matter of seconds.

We believe that the end product is only as good as its building blocks and so we go the extra distance to source these potent, vibrant and nutrient-rich ingredients so that your skin will radiate health both inside and out.

The unfortunate reality is – not really. When products say natural it doesn’t mean anything about the quality or purity of the product or the ingredients used.  Make sure the company is transparent and you are able to see all ingredients (not just key ingredients) on their website and labels. Additionally, try to stay away from suspiciously sounding things like Triethanolamine, Propylparaben, Imidazolidinyl, Cyclopentasiloxane etc

We know how it is. You pick up a skincare product making bold promises of “natural goodness”, only to find it contains harsh preservatives and stuff you can’t pronounce. Not us.

We believe in an informed consumer thus every ingredient we use is listed on the website and label, so you know we’re for real.

It’s been proven that synthetic ingredients are harmful to your health. Therefore our products are (very effectively) scented by nature

No, we do not. We’re committed to conducting no animal testing in any phase of product development by our company or by our suppliers.

Short answer – sincerity.

While many, many companies call their products natural or organic and even use words natural and organic in company name, unfortunately it does not always translate into full transparency when it comes to ingredients. Despite common belief, words “natural” and “all-natural” are not regulated labeling term and when used as product or company name they effectively mislead consumers into thinking that the product is safe. Sadly, it is not always true and the real answer is in the ingredients.

Here at Sincere however, when we say “natural” we mean “not-a-single-synthetic-ingredient-100%-good-for-you-kind-of-natural”

Our products are formulated to be extremely gentle and natural with no toxic chemicals of any kind so they’re suitable for most skin types

Because they are completely natural, our products are safe for use during pregnancy and breastfeeding. However, it is always recommended to consult your physician about any skin care you may be using or before starting a new product while pregnant or nursing.

The U.S. government hasn’t passed a new law in over 75 years regulating the ingredients used in skincare products making this industry nearly unregulated. Companies can use almost any ingredient they want even when they know it’s toxic or harmful. Right now, it’s up to companies to screen their own ingredients for safety (but most do not).

Yes, you do. We believe that you can never be too young to develop a safe and healthy skin care routine and a youth-preserving plan. It is much easier to preserve your current look now for as long as possible than fight visible signs of aging later. Our products specifically formulated to help maintain healthy, youthful appearance using safe and natural, yet potent and effective botanical ingredients

In fact, you should. Our luxurious yet 100% natural treatment is the only product of its kind specifically formulated to fight both visible & invisible signs of aging hands. Harnessing the power of 4 complexes containing over 25 proven-effective botanical ingredients, it works hard to diminish as well as prevent all signs of aging while you sleep

Mainstream, department store brands tend to use primarily synthetic ingredients. Even products labeled natural may contain harmful chemicals that have been isolated from natural plant ingredients. In such cases the term naturally derived may give consumers the illusion that they are purchasing a safer product when the reality presents an entirely different picture.

Detailed description of all ingredients used can be found by clicking “complexes” in the top navigation menu. Additionally, full list of ingredients can be found at the bottom of each individual product page

Navigating skincare ingredients these days can be daunting. There are tons of bad things out there linked to different illnesses from birth defects to cancer and anything in between. Here are just a few of them:

Diethanolamine and Triethanolamine (DEA & TEA) – They function as foaming agents and emulsifiers, while irritating to the skin. They have also been revealed as possible carcinogens. The major concern with DEA/TEA is they combine with nitrites in beauty products to form carcinogenic compounds. Companies don’t have to label nitrites, so you have no way of knowing if your mascara or body wash contains them. Again this is the reason to use products from companies you can trust to have your well being as their mission.

Fragrance/Parfum– Fragrance or parfum does not denote plant extracts and essential oils, rather it is actually a term that can refer to any one of hundreds of chemicals. Some are totally safe, however most are carcinogens, allergens, or endocrine disruptors. You have no way of knowing, and companies don’t have to tell us. Besides perfume products most beauty products contain this “ingredient” except products created by companies who are dedicated to providing healthy alternatives.  In 2007 the family of ingredients constituting the word fragrance was named “Allergen of the year” by the American Contact Dermatitis Society.  A new way companies have found around the fragrance concern is to label their products fragrance-free. Do not be fooled – all that means is that fragrance chemicals have actually been added to the products to mask the natural aromas of the base ingredients.

Propylene Glycol – This is one of the most common moisture carrying ingredient other than water used in cosmetics because it moisturizes better than glycerin. Used as a fragrance ingredient, wetting agent, surfactant and penetration enhancer, it is supposed to enhance absorption and promote spreading of the product on the skin.  Propylene Glycol is an emollient similar to that used in anti-freeze. It is classified as a skin irritant and associated with causing dermatitis and hives. Extensive animal studies have shown reproductive effects at moderate doses and endocrine disruption at high doses, with positive mutation results on mammalian cells.

Disodium EDTA – A chelating agent, penetration enhancer and viscosity controlling agent. Animal studies show broad systemic effects, brain and nervous system effects at low doses, and endocrine disruption and reproductive effects at high doses. Mammalian cell studies show positive mutation results. Because it is a penetration enhancer it can increase absorption of other harmful chemicals.

Dimethicone – A cancer suspect, it has caused tumors and mutations in lab animal studies.

Parabens (Methylparaben, Ethylparaben, Propylparaben, Butylparaben & Heptylparaben) – A family of preservatives commonly used in mainstream skincare products to prevent growth of bacteria, molds and yeast. They are able to mimic and interfer with estrogen production in the body and as estrogen exposure is a primary influence on development of breast cancer they are considered carcinogenic. Since they inhibit bacterial growth in cosmetic products they also kill the natural flora on our skin and in our gut, thus allowing the really bad bacteria to return and flourish with a vengeance.

Phthalates (DEP, DMP, DBP)- This group of chemials is used in hundreds of products to increase flexibility and softness of plastics. In cosmetics and personal care produts they are mostly used as solubilizers. They are toxic and are classified as “probable” carcinogens, and linked to many allergic reactions. They are also known to be endocrine disruptors and have been associated specifically with reproductive birth defects in males and females as well as increased risk of breast cancer. Banned in the European Union and Asia, they are still unfortunately commonly used by the larger cosmetic companies in the US.  Since they are often added as a fragrance ingredient, they are thus not listed on labels. This is one of the loopholes allowing companies to avoid the disclosure of toxic ingredients in their products.  One more reason to purchase products only from companies you know you can trust

Colorants (FD&C & other coal tar dyes) – These are topical skin irritants. They may contain aluminums and even low-level exposure has been linked to Acne, Allergic reactions, nausea, fatigue and formation of carcinogenic tumors in laboratory rats.

Denatured Alcohol – A petrochemical by-product, it can cause systemic eczematous contact dermatitis and chemical sensitivities. Added to most skin care products as a preservative, alcohols are especially drying to the skin and when added into moisturizing products instead of delivery the desired results they create a negative cycle of need.

Phenethyl Alcohol – A preservative and fragrance ingredient. It has never been assessed for safety but bodycare specific animal studies show sense organ effects and skin irritation at very low doses, and brain, nervous system and reproductive effects at moderate doses. Further testing also revealed this ingredient to be responsible for mutation on mammalian cells.

Diazolidinyl and Imidazolidinyl Urea – A preservative which is a strong skin irritant.  In aqueous solutions it can release formaldehyde.  It also contains ammoniums salts and may be contaminated with large amounts of toxins in the manufacturing process. A skin irritant it is also Acne producing, mutagenic and carcinogenic. By slowing down moisture loss it extends product shelf life which is one of the reasons it is heavily used by the larger cosmetic companiess. It also assists absorption of other ingredients deeper into the skin- unfortunately both good and bad ingredients, so you really don’t want it present in a product that contains other questionable ingredients.

Methylisothiazolinone An Antimicrobial agent, it inhibits the development of particular neuron structures that are essential for transmitting signals between cells, thus damaging particularly to a developing nervous system in fetuses.

Petroleum (mineral oils, vaseline) – Acne producing it causes long term dry skin. It is also a respiratory toxin and may be carcinogenic.

PEG ingredients – Promote Acne and contact dermatitis, they have also been linked to cancer.

Polyacrylamide – A stabilizer and foaming agent. It is often contaminated with acrylamide which is known to be neurotoxic and a possible carcinogen. It is highly toxic and irritating to the skin.

Cyclopentasiloxane – An anti-frizz, used to make hair and skin “shiny”. Cosmetic specific animal studies show sense organ effects at moderate doses. It is found to irritate eyes and and skin and was also found to change liver weight in lab rats.  It is bioaccumulative and is said to linger in the body for at least 5 years.

BHT (Butylated Hydroxytoluene) – Fragrance ingredient.  It is a known human immune system and skin toxicant. Animal studies revealed skin irritation, brain and nervous system effects and endocrine disruption at low doses. Other lab animal testing revealed positive mutations and reproductive effects at high doses.

Isoparaffin/Laureth 7 – There are concerns of contamination with Ethylene Oxide and 1,4-Dioxane.

Ethylhexylglycerin – A skin conditioning and deodorant agent. It has been classified by the European Union as an irritant with limited evidence of eye toxicity.

Cyclomethicone– Antistatic, hair conditioning emollient. In animal studies it has been associated with skin irritaiton at moderate doses and has also caused changes in liver weight. It is bioaccumulative.

Dimethylaminoethanol (DMAE) – This ingredient has been marketed as “face lift in a bottle”. It paralyzes the small muscles of the face, which makes wrinkles appear less visible. This is a temporary benefit not worth the danger of the ingredient.

Glycerin – Look for Vegetable Glycerin. Glycerin without the vegetable qualifier usually means it is petrochemical by-product.

Airless pumps are essential in avoiding contamination through finger-dipping and air-born bacteria

Yes. Parabens are the most widely used chemicals to preserve beauty products.  In research, parabens have been linked to illness and disease.  We use an all-natural, safe and effective preservation system to increase the shelf life of our products

Store products in a bathroom cabinet or on a shelf which is not exposed to sunlight or a heat source

If stored out of direct sunlight and excessive heat, Sincere products are safe and effective for up to 24 months

Payment, Shipping & Returns


It takes 1-3 business days for your order to be processed and shipped

Most domestic orders arrive within 5-7 business days. International orders should be expected within 10-15 business days

Yes, we are happy to offer 2nd Day Air and Overnight shipping on domestic orders. Please see below under “What are your Domestic shipping rates?”

All of the above! Please double check your shipping address at checkout to insure proper delivery

We offer FREE standard shipping on all orders within the United States.
2nd Day Air: $17, Overnight: $25

Absolutely! We are proud to say we now ship around the world. In fact, we will ship International orders over $150 FREE

For orders over $150, shipping is complimentary.  Otherwise, International shipping rate is $29. Please review your local policies prior to ordering. Unfortunately we can not be responsible for any additional duties, fees, customs or taxes your country may require nor for any delays associated with customs

Unfortunately this practice is super illegal and we’re really into following international shipping requirements to ensure that your package reaches you safe and sound. Following this requirement is actually one of the reasons why we never have issues with international delivery! Please don’t email us requesting this, because the answer will always be the same.

For orders over $100, shipping is complimentary.  Otherwise, shipping to Canada is $24

All our credit card processing is done through PayPal where you can use your Visa, Mastercard, Discover, and American Express as usual

Not at this time. However, if PayPal is available in your country, at checkout you’ll be redirected to paypal.com where you can use your credit card as usual

Once your item has been shipped, you will be sent a tracking number via email. If you have not yet received your confirmation email, it was likely caught by your spam filter. To ensure all emails make it through, please add our email to your address book: info@sincerecosmetics.com.

Additionally, you can track it by logging in to My Account.

We believe in our products, value our customers and that’s why we have a nothing-to-loose guarantee! We want you to enjoy our products and if for some reason you don’t, please contact us via email within 30 days after receiving your order and we will make it right.

Returns will be accepted on products purchased from sincerecosmetics.com only. Products purchased from any of our partners should be returned to the place of purchase.

Have any questions we didn't answer?