Which Proteins?
October 23rd, 2024 by Dr. Hannah Sivak
https://covalo.com/ is a company that helps other companies bring goods to the market. They invited me to a podcast that will be edited and published soon on Spotify. In the meantime, I wish to thank Anna Lorentz for her thoughtful questions. Here are my written responses to Anna’s questions, but the responses in the actual podcast will differ. Questions by Covalo to Dr. Hannah Sivak: For our listeners who might not be aware, what exactly are growth factors, and how do they function in the skin? Growth factors are proteins in our body that stimulate cellular division and differentiation. They bind to specific receptors on cell surfaces and are essential…
October 18th, 2024 by Dr. Hannah Sivak
At hannahsivak.com, we supply several active proteins to the cosmetic industry, but the human synthetic epidermal growth factor is especially dear to us. Why? For historical reasons. In 1986, Stanley Cohen received the Nobel Prize for his work elucidating the role of EGF in regulating cell growth and development. This small protein (only 53 amino acids) enhanced epidermal growth and keratinization. Work by Cohen and his collaborators demonstrated that EGF directly stimulated the proliferation of epidermal cells, and this stimulatory action of EGF did not depend on other systemic or hormonal influences. Cells that respond to EGF do so because they have receptors on the cell membrane that recognize the…
October 16th, 2024 by Dr. Hannah Sivak
At HannahSivak.com, we leverage our extensive scientific expertise to develop advanced bio-identical ingredients for personal care. We sell these ingredients and provide consulting advice on creating the world’s most effective skin and hair care products. These ingredients boost the body’s natural defense and repair mechanisms, helping your customers regain and retain the natural beauty of their skin and hair safely and sustainably. Note: We do not use transgenic plants (the European Union and several countries prohibit their cultivation) because we care about the environment. Proteins in stock We supply proteins as a suspension to be stored refrigerated. We provide advice on formulation, including how to preserve the protein’s activity until…
October 16th, 2024 by Dr. Hannah Sivak
After leaving my previous company, I am concentrating on supplying active proteins to the cosmetic industry. I am introducing a new blog category, “Which Protein,” highlighting the different proteins we supply and what they can do for the skin and scalp. Write to me for catalog and pricing information. Hannah info at hannahsivak dot com
September 29th, 2024 by Dr. Hannah Sivak
Please don’t buy the old editions of my books. We will soon have ready a version with simple, updated recipes for you to make at home. This will be the first editorial effort of my post-Skin Actives career, a more mature and realistic view of post-normal skin science! Hannah
September 25th, 2024 by Dr. Hannah Sivak
Please note that I am no longer at Skin Actives. I have no connection to the new owners. Thank you Hannah Sivak
August 19th, 2024 by Dr. Hannah Sivak
We had a good run! We did great work, designed and made great products, and improved many lives (including mine, during and after cancer treatment and several ongoing surgeries). Working at Skin Actives was my longest job ever, even longer than my research work in England and Michigan. Now it’s time to say goodbye, and of course, it hurts, but there is still a lot to be achieved. Keep an eye on my blog, I will keep posting, and I will find a way to communicate with you, receive questions and reply to them. Hannah