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Article: Hair Supplements: Why Nourishing Your Hair From Within Matters

Hair Supplements: Why Nourishing Your Hair From Within Matters

We often think of a hair routine in terms of serums and treatments applied to the scalp. That is half the equation. Hair is a living structure built from what the body provides, and that is where a dietary supplement finds its place.

Why topical care alone is not always enough

At Dupuis, our approach to hair health rests on three pillars: supporting the body from within, acting directly on the scalp, and durably protecting the hair fiber. A serum such as the Renaissance Serum works on the second pillar. The first belongs to nutrition.

Periods of stress, hormonal changes, postpartum, or simply an unbalanced diet increase the nutritional demands linked to hair. These are often the moments when density begins to decline.

What to look for in a hair supplement

Hydrolyzed marine collagen

Collagen is the most abundant structural protein in the body. In hydrolyzed form, it is broken down into peptides to support absorption. It provides high-quality peptides and supports collagen-rich tissues.

Hyaluronic acid

Naturally present in tissues, it is known for its exceptional ability to retain water. It supports tissue hydration, scalp comfort, and works in synergy with collagen.

Biotin (vitamin B7)

Biotin is one of the most recognized nutrients in formulations dedicated to hair health. It supports the nutritional needs of hair and contributes to scalp health.

Inositol

A molecule naturally present in the body, inositol is commonly used in next-generation nutritional formulations. It enriches the synergy of the formula and completes its nutritional benefits.

GROW + GLOW: the Dupuis formula

Our GROW + GLOW supplement brings together precisely these four actives: hydrolyzed marine collagen, hyaluronic acid, biotin and inositol. It supports hair, scalp, skin and nails.

It comes as an oral powder in two flavours: peach-mango and grapefruit. Format of 435 g, or 30 servings.

How to take it

  • Adults 18 years and older: one scoop per day.
  • Mix well in 250 to 500 mL of water or the beverage of your choice, then drink immediately.
  • Morning or evening, whichever fits your routine best. It contains no caffeine, so an evening serving will not disturb your sleep.
  • Take it at least 5 days out of 7 for visible results.

Early positive signs often appear within 30 days, with significant results after 3 months of consistency.

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.

Discover the subscription

Good to know before starting

The formula contains collagen of marine origin (fish) and hyaluronic acid of avian origin. It is therefore not suitable for vegans or for anyone with a fish allergy. If you are pregnant, breastfeeding or following a treatment, always confirm supplement use with your healthcare professional.

The most complete combination

GROW + GLOW pairs naturally with the Renaissance Serum. That is the logic of the Growth Trio: the supplement for the body, the Renaissance Serum for the scalp, and the Regenerating Serum for the lengths and ends.

Frequently asked questions

How long should you take a hair supplement?

Early positive signs often appear within 30 days, with significant results after 3 months of consistency. Take it at least 5 days out of 7.

Is GROW + GLOW vegan?

No. It contains marine collagen from fish and hyaluronic acid of avian origin.

Can you take GROW + GLOW at the same time as a serum?

Yes, and it is in fact the recommended approach. The supplement works from within, the serum works on the scalp. The two are complementary.

What time of day should you take it?

Whenever suits you. It contains no caffeine, so it works as well in the morning as in the evening. What matters is choosing a moment you will not forget.

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