Deciem Hylamide Booster C25

Our Rating: 4 stars

Reviewed by TIA Community Member on September 28, 2016

1 Comment


By Margaret D.

As I age, my goal is to age well. My skin is dry with an oily T-zone, and I never had any issues with large pores until after menopause — but that’s another story. I now look for products that will even out my complexion (I have some melasma), address fine lines and reduce the appearance of pores. I received a bottle of Deciem Hylamide C25 Vitamin C Booster ($33 in the shop) over the summer and proceeded to use it up. In fact, I completely missed the friendly reminder from TIA to write the review for this product, so my experience is over a nine week period.

I was happily surprised that Hylamide products are part of the Deciem family. I have several of their products and they all perform well. This simple yet powerful solution contains only four ingredients: ethoxydiglycol, ethyl ascorbic acid, hydroxyphenoxy propionic acid and phenylethyl resorcinol. Ethoxydiglycol is particularly appropriate for skin care preparations, as it acts as an excellent solvent and carrier. This is a form of ethanol, as the name suggests; however, ethoxydiglycol has a longer carbon chain and isn’t as harsh or hazardous. This distant relative of ethanol strengthens the absorption of L-ascorbic acid and other forms of vitamin C.

Ethyl ascorbic acid is a derivative of vitamin C with excellent skin brightening activity. It is unique in that its chemical structure causes it to be a highly stable form. Hydroxyphenoxy propionic acid is designed to exfoliate the skin, reduce hyperpigmentation and impede future spots. Finally, phenylethyl resorcinol, also known as SymWhite 377, is used as a lightening agent by influencing the production of pigmentation.

I started applying the liquid every morning after my shower and again before bed. After about six weeks, I started using it at night only, because the product is a little oily and tends to travel, leaving my scalp and hairline greasy. My hair would be very stringy by the end of the day, so that’s one negative. The only other negative is that it takes some time — upwards of 20 minutes — to absorb.  

I have since adjusted the usage and now apply it before using my at-home skin devices, as it provides great slip. I’m also still using Hylamide C25 before bed, since I shower in the morning after my workout. The instructor at my gym asked me to wait for her after class. Uh-oh! After everyone else had left, she asked me what I was using on my skin. She then proceeded to tell me how she wished her skin looked like mine — the best part is that she’s 33 and I’m 59!

My complexion is brighter, the lines are much less noticeable and my skin looks and feels smoother. There’s over half of it left, too, so this little bottle should last a few more months. I’m excited to see the continued effects it has on my skin! If you’re still wondering if I would purchase Hylamide C25 in the future, the answer is yes.