Khloe Kardashian is following the trend, as is Jennifer Aniston (you know, the actress who still looks the same as she did 20 years ago). According to media reports, these celebrities, and other Hollywood actors, have a very simple 5-minute morning routine to keep their skin looking younger, firmer and more radiant.
However, what does this routine actually involve? They all drink coffee with an extra added shot. Although, this kind of “shot” is not the same as a shot of rum or Amaretto at Christmas markets. This “shot” is much healthier, smoother and above all, it can help tighten the skin.

Hollywood stars and models simply use this routine to get firmer looking skin.
To clarify, many celebrities and famous people are putting collagen in their coffees in the morning. This transforms ordinary coffee into “Glow Coffee.”
However, what is collagen exactly? Collagen is the largest “structural protein” in the body and it is especially important for our skin’s elasticity and moisture levels. It is absorbed in the middle layer of the skin; the dermis, where it has a smoothing effect. In this layer of skin, the connective tissue is regenerated and made “firmer”, so to speak. This is also the reason why so many creams and cosmetic products fail to match the effects of collagen powder.
They are only applied superficially and have very little effect on the connective tissue as a result. Hence why so many celebrities now rely on collagen and drink it in the mornings as a “Glow Coffee.” This special kind of coffee helps firm up the skin from deep within and in contrast to cosmetics, has long-lasting and “deeply-penetrating” effects.
How about the taste of the coffee itself? According to numerous reports, the coffee even tastes a little creamier with this shot addition.

So, why add collagen to coffee?
Why should we take collagen at all when the body produces it itself? The explanation is a little shocking. The reason is, our natural collagen levels are only stable up until the age of 25. From then onwards, it drops by around 1% every year and during menopause it plummets. This also explains why collagen seems to be so popular among women in their mid-40s.
After all, Glow Coffee does not solely appear to have great effects on Jennifer Aniston. We spoke to Dr. Stephanie Martin, a dermatologist and an expert in the field. She told us that many women in that age bracket raved about the results of Glow Coffee after adding it into their routine for just a short period. During our research, we found many opinions that reflected and supported this:
“After 3 weeks, something had really changed when I looked in the mirror in the morning.” [1]Glow25 Reviews
“My skin no longer feels as chapped or as tight.” [2]Glow25 Reviews
“I feel as though I’m somehow more beautiful now.” [3]Glow25 Reviews
We naturally wanted to know, is there anything to these testimonials? Are there any scientific studies that can prove these claims? To that end, Dr. Martin was able to provide us with some interesting facts and “evidence”.

Can collagen in coffee really help to tighten the skin? We asked an expert.
According to Dr. Martin, the research results on collagen look very promising. The majority of these studies focused on the health of people’s skin from a more mature age bracket. [4]Oral Collagen Supplementation: A Systematic Review of Dermatological Applications
The largest study was most likely conducted on women aged between 35 and 55. These women only consumed 2.5g of collagen a day during just an 8-week period. There was also a “placebo group” to monitor the study’s effectiveness. [5]Oral Collagen Supplementation: A Systematic Review of Dermatological Applications
In this study, the skin’s moisture levels, elasticity and roughness, plus the depth of facial wrinkles were analysed. The results spoke for themselves: a significant, high-percentage improvement was observed in all areas. Even 4 weeks after the end of the study, there were still clear improvements!
Through our own research, we also discovered additional studies that showed collagen lives up to its reputation as a beauty treatment. Furthermore, it is not only the skin that it is said to benefit. Hair and bones also get to reap the rewards, so to speak. According to the studies we found, collagen can also make hair thicker and shinier, plus bones, tendons and cartilage stronger and thicker. It is also important to note, there were no side effects reported in these studies. [6]Oral Collagen Supplementation: A Systematic Review of Dermatological Applications

How to choose the right collagen powder for your individual needs:
Let’s look at the practical side of things. When buying collagen powder for Glow Coffee, there are a few things you should bear in mind to ensure it works optimally:
- The collagen powder should be 100% collagen hydrolysate. This is due to the fact this form is highly bioavailable, allowing your body to absorb the collagen peptides effectively.
- The powder should contain collagen type 1, as this type of collagen has the best effect on the skin.
- The collagen powder should be agglomerated so it can dissolve better in the Glow Coffee and so it is truly neutral in flavour.
- Please also keep an eye out to ensure it says “pure quality” on the label. This means it contains zero additives or flavour enhancers. Furthermore, the raw material the collagen is obtained from should not only be of a high quality, but it should also be sustainable.

The Daily Rituals test winner: Glow25 for firmer skin
If you are looking for a quality collagen powder, there are several suppliers available on the market. However, some failed our quality test because they did not meet our “minimum criteria.”
Our expert recommended we try collagen from Glow25. This renowned company from Berlin has been working with natural anti-ageing products and strategies for a long time.
When carrying out our test, we were particularly impressed by the fact the collagen really does dissolve in the coffee on its own and, as claimed, has a neutral flavour. In addition, the quality seems truly excellent. The type 1 collagen is extracted from sustainable pasture-farmed cattle and we were also impressed by Glow25 Collagen’s certifications and amino acid profile.
For this reason, and due to the surprisingly large number of testimonials about Glow25 Collagen online, which seem very authentic to us, we can recommend this collagen powder with a clear conscience.
Our favourite features of the product
- It is 100% pure hydrolysed collagen, obtained by enzymatic degradation, ensuring maximum absorption by the skin.
- It is responsibly sourced from German grass-fed cattle.
- It can easily be mixed into any cold or hot drink.
- It contains zero additives. It is 100% pure collagen.
- It has proven to be effective in a user test study.
- It is sold at a fair price.
Potential improvements to the product
- There are no vegan or vegetarian alternatives.
- It could be beneficial for the product to undergo additional clinical trials.
Conclusion: collagen is not just a great anti-ageing agent in coffee
Our Glow Coffee test revealed one thing in particular: collagen is not a Hollywood pipe dream. The numerous testimonials, studies and expert opinions we have obtained speak for themselves.
Collagen actually seems to be a great anti-ageing agent that truly penetrates the skin. In fact, it seems many women at a mature age experience a real difference in terms of skin health and radiance after just a few weeks.
Stirring collagen into your coffee in the morning is a great everyday treatment. However, we have also learnt that it works just as well with water, tea, muesli, a smoothie or any other drink or food. Primal State’s collagen powder is particularly suitable for all of these options. Out of all of the collagen powders tested, this one won us over us the most in terms of its quality, flavour and all-round benefits.