Amino Acids
Bullsh*t or not?
Let’s find out. We’re checking every claim, one by one.
To save you time, we’ve added screenshots of the most important study results.
You’ll find all sources at the bottom of this article.
They are the "Legos" of life. Your hair is literally made of them. But does adding extra Amino Acids actually stop hair loss? Here’s why:
✅ L-Cysteine & Methionine: The sulfur-rich "glue" that holds hair together
✅ Taurine: Prevents the hair follicle from shrinking (antifibrotic)
✅ L-Lysine: Essential for anchoring the hair root
Sounds good — but does it actually work?
What do Amino Acids really do for your hair?
Hair is 95% Keratin, and Keratin is just a chain of Amino Acids. If you don't have enough of them, your body physically cannot build hair.
✔ The "Building Blocks" (Cysteine & Methionine)
These are sulfur-rich amino acids. They form "disulfide bridges"—the strong chemical bonds that give your hair its structure. Without them, hair becomes brittle and snaps.
✔ The "Root Protector" (Taurine)
Taurine accumulates in the hair bulb and protects it from fibrosis (hardening). Fibrosis is what eventually kills the follicle in pattern baldness.
✔ The "Deficiency Fix"
Research shows that even if you eat protein, your follicles might be starving. Specific deficiencies in Histidine and Isoleucine are directly linked to thinning hair.
What does the science say?
📌 2017 – The Hidden Deficiency (Gowda et al.)
A cross-sectional study analyzed the blood of participants with different types of hair loss:
1. MPHL (Male Pattern Hair Loss): The classic genetic balding.
2. FPHL (Female Pattern Hair Loss): Genetic thinning in women.
3. TE (Telogen Effluvium): Temporary shedding caused by stress.
The Shocking Result: A massive percentage of hair loss patients were deficient in key amino acids, regardless of the type of hair loss.
Specifically, >90% of participants with Androgenic Alopecia (MPHL/FPHL) were deficient in **Histidine**. Even more surprisingly, 100% of women with FPHL were deficient in **Leucine**. Additionally, **Alanine** deficiency was found in over 90% of all groups.

📌 2023 – The Efficacy Study (Milani & Colombo)
A randomized, controlled trial tested a supplement complex of specific amino acids (Cysteine, Methionine, Taurine) on patients with hair loss.
The Result: The group receiving the amino acids saw drastically better results than the group using standard treatment alone.
85.4% of the amino acid group achieved clinical improvement (compared to only 48.6% in the control group). The amino acids effectively doubled the success rate of the treatment.

⚠️ Important Note:
It is worth mentioning that the supplement in this study didn't just contain Amino Acids. It also included Hydrolyzed Collagen, Iron, and Selenium.
While this might skew the results (as it's a combined effect rather than just the amino acids), it reinforces a key point: Synergy wins. Hair needs a complete "cocktail" of nutrients to recover, not just one single ingredient.
How should you actually use it?
Eating a steak? It helps, but digestion breaks proteins down and sends them to your vital organs first, not your hairline.
What does work?
👉 Topical Delivery:
Applying specific amino acids directly to the scalp ensures they are available exactly where the hair is being built, bypassing digestion.
👉 Structure + Stimulation:
Amino acids build the car, but they don't drive it. You need to combine them with growth stimulants to see real results.
Verdict: do Amino Acids work?
✅ Yes. You cannot build a skyscraper without steel beams, and you cannot grow hair without Amino Acids.
Our take?
Amino Acids are the raw materials. They ensure that when you stimulate growth, the hair that comes out is thick, strong, and unbreakable.
But materials need a construction crew. That is why KÁDESO Grow Serum combines a complex of Amino Acids with Saw Palmetto (to stop the DHT attack), Capilia Longa™ (to reset the follicle), and Caffeine (for energy). By combining these ingredients at their clinically proven dosages, we ensure your hair has both the fuel to grow and the bricks to build with.
➡️ Want to try it yourself? At least you’ll know you’re using something backed by real science.
Sources
-
Gowda et al. (2017) – Prevalence of Nutritional Deficiencies in Hair Loss...
Study revealing that >90% of Androgenic Alopecia patients were deficient in Histidine, and 100% of FPHL patients were deficient in Leucine. -
Milani & Colombo (2023) – Efficacy and tolerability of an oral supplement containing amino acids...
Randomized clinical trial confirming that amino acid supplementation (combined with collagen/iron/selenium) improved clinical success rates to 85.4%.




