Hair Loss Serum: How to Choose (and Why Capixyl Makes the Difference)
The hair loss serum market is saturated. Dozens of brands promise denser regrowth, but they are not all equal. Here are the concrete criteria to check before choosing a serum, and how the Dupuis Renaissance Serum compares.
1. Active concentration, not just presence
Many serums advertise trendy ingredients without stating the concentration. A trace of an active does not have the same effect as a documented concentration.
- The Renaissance Serum contains 5 % Capixyl™, a clearly stated concentration.
- Always check whether the brand publishes a precise percentage. The absence of a figure is often a warning sign.
2. A multi-active approach rather than an isolated ingredient
A healthy scalp needs more than a single star ingredient. The Multi-Peptide Scalp Technology™ in the Renaissance Serum combines several families of actives that work together:
- 5 % Capixyl™ and red clover extract, for the follicle environment;
- Acetyl Tetrapeptide-3 and Biotinoyl Tripeptide-1, two biomimetic peptides that support hair anchoring and resistance;
- pea peptides and an amino acid complex, for the hair fiber;
- panthenol and chamomile, for hydration and comfort.
To understand in detail how these actives interact, read our article on Capixyl™.
3. Ease of use
A serum that requires a complex routine is less likely to be used consistently, yet consistency is the single most decisive factor in results. The Renaissance Serum is a one-step product: one pipette daily on a clean scalp, dry or slightly damp, followed by a light massage. No rinsing, light water-based texture that leaves no greasy film.
Consistency, without thinking about it. This is where most routines fail: you forget to reorder, and the treatment stops right when it was starting to work. A Dupuis subscription delivers automatically, with 15 % off, and pauses whenever you want.
4. A complete approach rather than a single product
The scalp is only one of three levels to consider. A complete approach also addresses the body's nutritional needs and the quality of the lengths. That is the logic behind the Growth Trio, which brings together the GROW + GLOW supplement, the Renaissance Serum and the Length and Ends Regenerating Serum.
5. Traceability and origin
Dupuis is a Quebec brand. Our products are developed and bottled in Quebec, created with chemists specialized in dermocosmetics and tested in collaboration with trichologists and hair professionals. Our approach is grounded in research rather than trends.
6. Price relative to concentration
Compare the price against the concentration of actives and the quantity of product, not just the sticker price. A cheaper but under-dosed serum rarely offers better value in terms of results.
In summary
Before buying a hair loss serum, check the precise concentration of key actives, how complementary the formula is, how simple it is to use daily, and how transparent the brand is about its ingredient choices.
Frequently asked questions
What Capixyl™ concentration should you look for in a hair loss serum?
5 % is a commonly used and documented concentration for this active. It is the concentration used in the Dupuis Renaissance Serum.
Is a hair loss serum enough on its own?
A serum targets the scalp. A complete routine combining scalp care, length care and nutritional support generally delivers better results.
How long before results appear?
Early positive signs often appear within 30 days, with significant results after 3 months of consistency. Use at least 5 days out of 7.
