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About Us


I Created And Launched Sterling Minerals For All Women Back In 2006 

to share a secret of the easiest and most incredible way to enjoy a more radiant, healthy skin.  Dealing with my own pangs of aging and enduring the sun damage I had done to my skin over the years, my journey began by wanting desperately to restore my own skin to a healthier, more vibrant appearance.  Plus with several skin cancer removals over the last two decades, it was imperative I provide an exceptional mineral makeup that would protect faces from further damage.

Protection from the suns harmful UV Rays, along with free radicals and environmental pollutants we are exposed to daily, is absolutely vital for our skins preservation.  I have always practiced due diligence when focused on scientific research by knowing what goes into and onto our bodies, and how it affects us long term.  Holistic and wholesome nutrition combined with natural and organic ingredients in skin care products are key to keeping us healthy and beautiful inside and out. 

In what seemed as never-ending trial and error, many skincare and makeup products didn't deliver on their promises.  They mainly contain synthetic chemicals which in most cases create more discomfort and prolonged healing time after a dermatological procedure.  This drove me with all my "heart and soul" to create mineral makeup that didn't contribute to skin problems by causing further irritation, and to perfect the minerals so other women dealing with similar skin issues can use them with confidence. 

Although women of all ages love our minerals, women over the age of 50 in particular, deal with changes to skin which can include procedures to correct sun damage.  We need makeup that doesn't dry our skin or age us further, yet feels wonderful on our face and enhances our beauty to reveal a natural healthy complexion.  Sterling Minerals provides this benefit at any age!

After two years of research and development including product testing, I arrived at a superior proprietary blend of the first and original mineral makeup to offer the benefits of 3 formulas for specific skin types.  My results allowed me to offer formulas using the finest essential mineral powders combined with skin conditioning botanicals… many of which are still used today in the Ancient Art of Ayurveda.  Our mineral makeup is the ultimate in gentle skincare.  To get started, we offer our General FAQ's section so you too can share in the mineral makeup miracle effect I created and for all women to achieve the look they desire.

Most women want age defying results along with an everyday mineral makeup ritual that is simple, painless and fun to use, creating our Mantra

3 Formulas. One Result. Beautiful Healthy Skin™


My journey was far from over, however

since it was important for me to offer a complimentary skin care line integrating modern science technology with nature's own botanicals, keeping skin beautiful, fabulous and healthy.  Upon completion of another year of research and product testing, my new beloved skin care line which I fondly refer to as ONATI™, was realized.


Organic, Natural, Age-defying, Toning, Invigorating. 

The ONATI™ name I cherish is about more than just what it stands for, because my husband and best friend of over 43 years created the namesake for my innovative skin care line.  Family support has helped me to achieve my dreams and to do what I do best, help other women with their skin issues and create a sense of community.

It is with this exceptional line of products that helps women put their best “Face” forward in whatever their life’s pursuits. 

It was also important for me to provide products that would reduce down time after a cosmetic procedure or skin treatment from sun damage, and to prevent further discomfort of acne or rosacea.

My commitment is to continue my never ending research into the science of healthy skin and provide truth, integrity, ethics and education to anyone who seeks it.  I will always continue to strive to offer result driven formulas to those who will accept nothing less.

You can see my research on all things relating to the beauty industry since my countless articles written are based on peer reviewed scientific research and data.  I extended this research to my customers and for many of our ladies I have become the "go to" resource when wanting to know more about the products we use everyday.  Alongside my colleagues in the science community, I collaborated as a beauty industry expert at "Personal Care Truth" for over 9 years, until sadly, they published their final article last year, followed by the site going dark this past Oct. 2019. 

I truly enjoyed the camaraderie with my beauty industry colleagues and this part of my journey will be missed.  Yet, I will continue to always present the "sometimes" inconvenient truth in cosmetic research, yet I will dispel any pseudo science created simply to malign or inflate benefits of some ingredients by those with a target specific marketing agenda.

To all my wonderful ladies who share similar stories, Always exude confidence, Live life to the fullest, Achieve your goals, and let "Sterling Minerals and ONATI" help restore and keep that rose petal softness and lovely glow of youthful, healthy skin we all enjoy.

Hugs to all and best wishes;

Katherine Corkill | Founder / CEO

"A Woman is like a teabag; you never know how strong she is until she gets into hot water."

~ Eleanor Roosevelt ~