Hair Care Guide: How to Choose the Right Products

Overcrowded shelves, miracle claims on the bottle... Finding the right hair care can often feel like a puzzle. Between formulas that mask problems rather than treating them and exotic ingredients with questionable effects... As the head of product selection at Joybuy, my mission is to help you see things more clearly. Let's break down the traps to avoid and the criteria that truly matter for making an informed choice that’s right for your hair.

Traps to Avoid Before Buying a Hair Treatment

Hair care marketing is bursting with creativity, but some promises can mislead you and unnecessarily lighten your wallet. Here are the three most common traps:

1. The Illusion of Instant Repair: Many products promise instant softness and shine. The trick? A high concentration of silicones, which coat the hair fibre to create an illusion of health. While practical for styling, this is a far cry from a deep repairing treatment. The hair looks healthy on the surface, but the underlying problem (dryness, breakage) remains unsolved.
2. The "Single Miracle Ingredient" Myth: Highlighting one "miracle" ingredient, whether rare or precious, is no guarantee of a product's effectiveness. Its concentration is sometimes so low that its impact is negligible. A formula that works relies on a synergy of well-dosed active ingredients, not just a single exotic name to look good on the label.
3. The "One-Size-Fits-All" Solution: A treatment for dry, brittle hair doesn't have the same goals as an anti-hair loss serum. Be wary of "all-in-one" products that claim to fix everything at once. Hair damaged by bleaching has different needs than a scalp experiencing a loss of density.

Key Criteria for Selecting an Effective Hair Treatment

To make the right choice, focus on concrete elements. Here are two points to check to evaluate the relevance of a treatment.

1. The Treatment's Action: Surface-Level or Deep-Acting?

It's essential to distinguish between two main families of treatments:

• Cosmetic Treatments (Surface-Level Action): These are masks, oils, and creams that primarily act on the cuticle (the outer layer of the hair). Their goal is to improve the immediate appearance of the hair (softness, shine, manageability). A good mask for damaged hair, rich in nourishing agents (plant-based oils, ceramides) and hydrolysed proteins, can temporarily fill in gaps in the fibre.
• Structural Treatments (Deep-Acting Action): These treatments aim to work at the core of the fibre or from within the body. This category includes treatments that rebuild disulfide bonds (like Olaplex technology), designed to repair deep chemical damage. Hair supplements, on the other hand, provide essential nutrients (biotin, zinc, selenium) directly to the root to promote healthy growth.

2. The Formula: Which Active Ingredients to Look For?

Beyond marketing, the ingredients list (INCI) is your best ally. Here are a few active ingredients with proven effectiveness for specific issues:

• Hydrolysed Proteins (Keratin, Silk, Wheat): In an effective keratin treatment, these small-sized proteins penetrate the fibre to fill in gaps and strengthen its structure. They are ideal for damaged and weakened hair.
• Scalp Actives: In cases of hair loss, ingredients like niacinamide, piroctone olamine, or certain plant extracts help to purify the scalp and strengthen the hair's anchor.
• Essential Nutrients (as supplements): Biotin (Vitamin B8) and selenium contribute to the maintenance of normal hair, while zinc supports the normal synthesis of proteins, including keratin. A hair supplement is an excellent foundation to support your care routine from the inside out.

Hair Care Product Recommendations

Rather than an endless list, here are our targeted recommendations for different profiles, to help you find the treatment that's truly right for you.

IDEAL FOR: BLEACHED OR CHEMICALLY TREATED HAIR

OLAPLEX Traveling Stylist Kit (N°1 + N°2)

Why we chose it: This kit is the answer for hair that undergoes heavy chemical treatments (bleaching, straightening, perms). It doesn't just mask the damage; it rebuilds the very structure of the hair. It's a true foundational treatment, to be used to complement your salon visits or as an intensive course at home.

How it avoids the trap

It doesn't fall for the surface-level repair trick. Its patented technology (Bis-Aminopropyl Diglycol Dimaleate) acts directly on the broken disulfide bonds deep within the hair fibre, offering structural repair, not just a cosmetic cover-up.

Key benefit

It preserves hair health during technical treatments and visibly restores strength and integrity to even the most damaged hair.

IDEAL FOR: DAMAGED HAIR LACKING BODY

DESSANGE Keratin Morphose Reconstructing Mask

Why we chose it: Perfect for hair weakened by daily aggressors (heat, brushing) that looks dull and feels coarse to the touch. This mask acts like a substance recharge to restore body and softness to the hair, without ever weighing it down.

How it avoids the trap

It avoids the "one-size-fits-all" trap by specifically targeting damaged hair. Its formula is enriched with a plant-based keratin complex and hyaluronic acid, active ingredients known for their ability to penetrate the fibre and rebuild it from within.

Key benefit

It restores suppleness and softness with a rich, creamy texture that works in just a few minutes. An easy treatment to incorporate into your weekly routine.

IDEAL FOR: AN "IN & OUT" APPROACH TO VITALITY

Nutri&Co Hair Complex - 60 capsules

Why we chose it: For anyone convinced that beautiful hair also comes from within. This food supplement provides a solid foundation for supporting long-term hair health, alongside external treatments. It is particularly recommended during seasonal changes or periods of fatigue.

How it avoids the trap

It tackles the root of the problem, not the symptoms. Instead of simply beautifying the visible part of the hair, it provides the bulb with the essential nutrients needed to build a strong, healthy fibre. It thus avoids the trap of purely cosmetic treatments.

Key benefit

A clear, targeted formula that provides 100% of the reference intake for biotin, zinc, and selenium, three key micronutrients that contribute to the maintenance of normal hair.

Your Hair Care Questions

What's the difference between a mask and a conditioner?

A conditioner has a fast, primarily surface-level action. Its purpose is to seal the hair's cuticles after washing to make detangling easier and add softness. A mask for damaged hair, which is more concentrated in active ingredients, is designed to be left on for longer (from 3 to 20 minutes). The goal: to allow the ingredients to penetrate the fibre deeply to nourish or repair it.

How often should I use an intensive treatment?

It all depends on the condition of your hair and the type of product. For a mask for dry, brittle hair, once a week is a good rhythm. For a reconstructive treatment like Olaplex, the frequency will depend on the intensity of the damage and the brand's recommendations. An anti-hair loss serum is most often used daily, as a course of treatment over several months. In any case, carefully read the manufacturer's instructions.

Is an at-home keratin treatment as effective as one in a salon?

At-home keratin treatments (masks, leave-in creams...) are excellent for maintenance. They recharge the hair fibre with proteins to strengthen and coat it. They should not be confused with a salon's Brazilian blowout, which is a semi-permanent technical service that modifies the hair's structure using heat. The at-home treatment is a repairing gesture, whereas the salon service aims to transform the shape of the hair.