I don't believe Aplecin is a scam and besides, there's been several studies done on caffeine alone to prove its effectiveness against hair loss.
Androgen-dependent growth inhibition of ex vivo hair follicles from patients suffering from Androgenetic Alopecia was present in the human hair organ culture model, a constellation which may serve for future studies to screen new substances against androgen-dependent hair loss. Caffeine was identified as a...
pubmed.ncbi.nlm.nih.gov
This study reveals new growth-promoting effects of caffeine on human hair follicles in subjects of both sexes at different levels (molecular, cellular and organ).
pubmed.ncbi.nlm.nih.gov
Abstract. Caffeine, particularly after ingestion, is well known to exert various pharmacological effects. A growing body of evidence implicates the ingestion of caffeine with beneficial effects on several diseases. The easy penetration of caffeine across the skin barrier and into human skin...
www.karger.com
This last study was good because it addresses your link regarding caffeines effectiveness. The main problem with caffeine based solutions is that they didn't believe caffeine could have long lasting effects on hair loss, not that it doesn't work.
To which Aplecin came out with a new product to address this called "Aplecin Caffeine Liquid" which is similar to how Minoxidil is meant to be applied twice a day. So you apply it twice a day morning and night and leave it in your scalp the whole day. This fixes the problem of Aplecin not countering Hair Loss Long term.
Androgenetic alopecia is a condition with a high prevalence worldwide and affects both males and females. Currently, only 2 approved treatments exist: finasteride (males only) and minoxidil 2 or 5% solution (males and females). We conducted a ...
www.ncbi.nlm.nih.gov
It's often said how Alpecin is just as good as pharmaceutical drugs, especially as good as Minoxidil 5%. Which is very impressive.
But besides all the studies. I don't believe any of the studies from Finasteride and Minoxidil. Because even though those are FDA approved, they have sooo many more side effects and they don't work on a very large % of people suffering from male pattern baldness. The people that Finasteride does stop hairloss are few, and those that get regrowth are rare.
Finasteride I believe is the biggest scam in the hair loss industry. They claim only 4-6% people that use finasteride get sexual side effects. That is probably the biggest load of bullshit I've ever heard. Atleast 60% of users get sexual side effects and that's being modest. Around 70% - 80% is my guess from what I've seen from hairloss forums, comments sections, voting polls, myriad of websites, literally every single hair loss treatment in the pipeline mentions Finasterides side effects.
If anything, Finasteride outliers (minimum majority) are those that actually don't get side effects and that have their hair loss stabilized.
There's tons of people on every single hair loss forum, hair loss web pages/articles, that claim they've experienced sexual sides and there's even multiple forums specifically created for Finasteride side effects.
So Definitely some major Corruption going on with the false information regarding the "only 4-6% of Finasteride users get sexual side effects" statement.
As for Minoxidil, the results are so minimal, it's considered negligible by most and its side effect profile out weight it's minimal benefits (when there even rarely is regrowth).
That being said, I don't pay much mind to studies but more about people's testimonials. There's a large majority of Finasteride and Minoxidil users that claim the treatment does nothing for them and a big portion of that claim to have gotten side effects or that their hair loss has worsened with Finasteride.
Whereas the testimonials for Caffeine based substances like Alpecin Shampoo and Alpecin Caffeine Liquid have a far higher percentage of happy customers. No one is expecting miracles with Alpecin but as long as it stabilizes and provides thickening, people are happy until a legit cure comes out. But what makes Caffeine based Shampoos even better is that their natural substances, so no side effects, and whereas many people don't respond to Minoxidil or Finasteride, lots of people report improvements with Alpecin.
Lastly, just because Alpecin has far less studies doesn't mean it's any less effective. Remember, natural products don't have the financial backing of Big Pharma to conduct studies, so some studies even for natural substances like Saw Palmetto and Essential Oils like Peppermint Oil, Rosemary Oil, etc doesn't mean they don't work. The media is a crazy place where marketing is real. People will say anything to put other things down and downplay possible solutions just because they can't make money of it.
If Big Pharma had to conduct studies on natural substances, and they prove its effectiveness, they'd lose billions on their pharmaceutical drugs for hair loss. Big pharma with their wealth, resources, marketing and media power will always do what they can to detract people. Money talks. Even famous hair surgeons get commission by promoting their products.
Simply, just because there isn't any studies or enough studies, doesn't mean something isn't effective.
Alpecin is Germany's best selling men's shampoo for a reason.
It's also said that "In Asia, Alpecin is the top selling product to assist in preventing hair loss".