Power Up / Silk Barrier Booster / NEW IN


Update ~ 15th November 2023

The Power Up is becoming a cult product! We have won the prestigious 'Highly Commended' for this in the Pure Beauty Awards 2023! Serums are the most crowded category and we are grateful to all our amazing customers who voted for us.

There is now overwhelming evidence with the Power Up - we have awards, independent consumer trials, in vitro testing (which showed the Silk outperformed the market leading peptide), data from our own customers and reviews that this product, with only 1-2 drops will enhance the health and the appearance of your skin. I am so proud of this product!

We keep being asked to bring this out in bigger bottles, or to put the product on subscription ~ I will bring out a 15 ml bottle soon. 

Update ~ 28th July 2023

This product has now sold out 4 times since launch. It has won an award (Silver, Best Serum, Global Makeup Awards and been shortlisted for others), The Beauty Bible called it 'fabulous' and the feedback is unprecedented. Our favourite is "this serum does everything you say it does"  Customers are seeing results for redness, fine lines, dry skin and deep wrinkles. This is the Power of Silk at its most magical. 

Update ~ 30th June 2023

The 'Power Up' results are back from the lab! They said it is one of the best products they have ever seen. We set the bar high and had it tested with 81 women who were ***already using "anti-ageing" products. They noticed a difference by just adding 1-2 drops to their existing products. In other words, you will see a difference over and above what you are already using. 

99% saw hydrated skin, 97% saw smoother skin, 93% saw healthier skin, 91% saw more resilient skin, 84% reported increased skin density, 78% saw lifted skin, 78% saw plumper skin, after adding Power Up to their anti-ageing products for 2 weeks. Ie, this product will improve your anti-ageing products. 

Update ~ 3rd April 2023

This product is now back in stock following unprecedented demand and sell out. 

Update ~ 23rd March 2023

We have had preliminary results from our testers and to our astonishment have had the following feedback:

"I was shocked. My colleagues asked me if I had work done, when I told them it was your serum, they did not believe me. They felt it had to be something more drastic than a serum. The fact that it is a clean product is just icing on the cake. Thank you so much for this product."

"It definitely plumps and smoothes"

"My cheeks look plumper and less hollow."

"This serum is amazing. My skin looks much clearer and more even."


Product History from the Founder:

This is one of the most remarkable products that I have ever seen and more than any other product, demonstrates the pure power of Silk.

And actually, what is interesting is that it is the product most like the Silk pillowcase, in that you can drop this Silk product into your existing skincare routine. 

I am writing this in the first person, which is unusual for product descriptions, but it is a very unusual product, so I'd like you to know the full story behind it.

In 2021 I began working on a moisturiser with my scientist, and in 2022 I became impatient because I wanted to add Silk to all aspects of my skincare. So we began making a very concentrated Silk active which could be added to existing moisturisers or serums. 

The reason I want to add Silk is because it really is a superingredient that does a lot very well. Silk is very well known in the medical world as a wound-healing ingredient. The Silk Peptides are excellent for everything barrier (ie skin) related, because Silk is primarily a barrier in nature. Silk in skincare is good for signs of ageing, for brightening, for hydrating, for's a miraculous little molecule.

Silk is tricky to formulate with because at therapeutic doses, which is what we use, it is very sticky. It is a potent active at therapeutic doses. 

So...come 2023..

After a few submissions and lots of tweaking, I approved a really viscous serum, designed to be added to other products. 

We began testing it on our hands, and then our faces. We would put a tiny amount of handcream on both hands, and to one hand, apply a couple of drop of the Power Up. 

For our faces, we applied a pea-sized amount of moisturiser for one half of the face, 

That was rubbed in, and 2-3 drops were added to one half.

Within 10 minutes we saw serious plumping and smoothing, and skin felt really, really soft. I was quite taken aback at the results. When we saw the photos I asked for the photos to be taken again, because the results seemed unreal. 

We have a small amount of product in stock for a temporary special price (£19) and look forward to your feedback. 


At a Glance:

'Power Up' Silk Barrier Booster Ampoule 3 ml


Who Is It For?

  • Skin showing signs of ageing
  • Skin that needs 'plumping'.
  • Skin in need of serious TLC
  • Sore, red and dry skin
  • Sensitive skin ~ oil and fragrance free.

Instructions for Use

A viscous and potent serum with a very high % of Silk, this has been designed to be added to your existing skincare products. Mix 1-2 drops in the palm of your hand with your moisturiser / oil / serum / retinol before applying to your skin. 


Active Ingredients

Silk Fibroin, Ceramides, Hyalonuric Acid, Niacinamide, Cholesterol, Glycerin. 





Customer Reviews

Based on 21 reviews
Power boost

Such lovely products that I repeat order - I'm 74 and everyone compliments me on my skin! I use the Power Boost, the Pillow, and the cleanser and oil and am very happy with the results.

I’m in love

Noticeable improvement in just 3 days! I had a few comments on how good my skin looked.


After a recommendation following speaking to the lovely team at this is silk I bought a bottle of the serum to try. I was skeptical as I have combination oily temperamental skin but at 44 was looking for something to help with aging as gracefully as I can. It fits into your skincare routine perfectly only needing 2 drops adding to your usual products. I've used it a couple of days and I am amazed at how my skin looks already. It looks smoother and healthier. I'm looking forward to how my skin looks and feels with more use. Don't hesitate to buy this is the holy grail of serums cannot recommend enough!

Miracle serum

I have just discovered this silk serum and since using it, my skin looks and feels much healthier. I am 76 years old and this product has made my whole face look brighter. I will be buying this again and couldn’t recommend it enough.

The crème de la crème of serums

Let me start by saying I am a facial serum fanatic, if it’s out there you can pretty much guarantee I’ve tried it! So I know a good serum when I find one and this is definitely the best one I’ve tried. I’ve been mixing two drops into my normal face creams every morning and evening and all I can say is ‘wow’. It’s been 5 days but already my skin is smoother, any fine lines are plumping out and my whole face/neck/chest just looks so much more hydrated. Trust me when I say that if you love your skin then you need this serum!