Five Advanced Actives. One Remarkable Serum. Meet BioAge

NAD+. NMN. PDRN. Exosomes. Peptides.

These ingredients have become some of the most talked-about names in regenerative aesthetics, appearing in conversations about everything from skin aging and collagen to scalp health and hair restoration.

BioAge brings all five together in one professional serum designed for skin and hair applications.

But an impressive ingredient list does not automatically tell you what a product can actually do. Some of these actives have decades of biological research behind them, while others are only beginning to be studied in aesthetic medicine. And evidence for an ingredient in laboratory research does not necessarily prove that every topical formula containing it will produce the same clinical result.

So, what exactly are these five actives, why are they generating so much attention, and what does current research actually tell us?

First, What Does “Regenerative” Skincare Actually Mean?

Regenerative aesthetics is a broad and increasingly popular term.

Rather than describing one specific treatment, it generally refers to approaches intended to interact with biological processes involved in tissue repair, cellular communication and skin or hair-follicle function.

The science behind these approaches ranges considerably.

Some ingredients have established biological functions but limited evidence when applied topically. Others have promising early clinical data but still lack large, standardized trials.

That distinction is particularly important with a formula like BioAge.

The interesting question is not simply how many advanced ingredients are inside the bottle. It is what researchers currently know about each one.

1. NAD+: A Molecule Central to Cellular Energy

NAD+, short for nicotinamide adenine dinucleotide, is a molecule naturally present in virtually every cell in the body.

Its biological role is fundamental.

NAD+ participates in cellular energy metabolism and is involved in multiple cellular processes, including redox reactions, mitochondrial function, DNA-related processes and cellular stress responses.

Interest in NAD+ and aging has grown partly because NAD+ metabolism changes with age and has become an important area of longevity research.

That makes NAD+ scientifically fascinating.

It does not, however, mean that applying NAD+ in a skincare serum has been clinically proven to reverse skin aging.

This is an important distinction between biological plausibility and demonstrated cosmetic efficacy.

Research into NAD+ biology is substantial, but evidence for specific topical NAD+ formulations and their ability to produce clinically meaningful skin or hair-restoration outcomes is considerably more limited.

For BioAge, NAD+ is therefore best discussed as an ingredient connected to cellular energy and metabolism rather than as a proven anti-aging or hair-regrowth treatment.

2. NMN: A Precursor in the NAD+ Pathway

NMN, or nicotinamide mononucleotide, is closely related to NAD+.

It is a naturally occurring molecule that serves as a precursor in the body's production of NAD+. In simple terms, NMN participates in the biochemical pathway cells use to maintain their NAD+ supply.

This connection has made NMN another major focus of aging and metabolic research.

Most clinical interest in NMN to date, however, has focused on systemic metabolism and oral supplementation rather than cosmetic topical application.

That means claims about what NMN can accomplish when delivered through the skin or scalp need to remain appropriately cautious.

Its biological relationship with NAD+ is established. Its specific contribution to visible skin rejuvenation or hair restoration when incorporated into a topical professional serum requires substantially more clinical research.

For now, NMN belongs in the promising and scientifically interesting category rather than the “clinically proven to reverse aging” category.

3. PDRN: An Emerging Ingredient in Regenerative Dermatology

PDRN, or polydeoxyribonucleotide, consists of DNA-derived fragments and has attracted considerable interest in regenerative medicine and dermatology.

Research has investigated PDRN and related polynucleotide preparations for applications including tissue repair, wound healing and skin rejuvenation.

A 2026 systematic review examined randomized clinical trials involving PDRN and polynucleotides for skin rejuvenation, scar prevention and wound healing.

Seven randomized trials involving 183 participants were included. Across the studies, researchers reported improvements in several outcomes, with some of the most consistent findings appearing in wound-healing applications.

However, there is an important limitation: the evidence base remains relatively small. The researchers specifically noted small sample sizes, different treatment protocols and inconsistent outcome measurements.

That means PDRN is an intriguing regenerative ingredient, but it would be premature to treat every PDRN-containing product as clinically equivalent to the formulations and delivery methods studied in medical research.

What about PDRN for collagen?

Skin remodeling and extracellular-matrix changes are among the reasons PDRN and polynucleotides have become popular in aesthetic medicine.

But “boosts collagen” can be an oversimplified marketing statement.

The effect depends on the specific compound, concentration, formulation and method of delivery. Evidence involving an injectable or medically delivered PDRN product, for example, cannot automatically be transferred to a topical serum.

That distinction matters when evaluating BioAge or any regenerative skincare formula.

4. Exosomes: Perhaps the Most Talked-About Ingredient of All

Few ingredients have generated as much attention in regenerative aesthetics as exosomes.

Exosomes are tiny extracellular vesicles involved in communication between cells. They can carry biological cargo such as proteins, lipids and nucleic acids from one cell to another.

Researchers are studying whether this communication system could have applications in tissue repair, skin rejuvenation and hair-follicle biology.

The research is intriguing, but exosomes require more caution than almost any other ingredient on this list.

Exosomes and Skin Rejuvenation

A 2026 systematic review and meta-analysis evaluated human clinical studies of exosome therapies in aesthetic medicine. The authors found improvements across several measured skin outcomes, including wrinkles, pigmentation, elasticity and texture.

However, the researchers also highlighted important limitations, particularly heterogeneity between studies and a lack of standardized treatment protocols.

An earlier systematic review of topical exosomes and peptides similarly described the evidence as promising but preliminary.

In practical terms, exosomes are an exciting area of research, but we still need better answers about optimal sources, concentrations, manufacturing, delivery methods and long-term safety.

Exosomes and Hair Restoration

Hair restoration is another rapidly developing area of exosome research.

A 2025 systematic review evaluated 11 clinical studies involving exosome-based interventions for hair loss. Improvements were reported in measures such as hair density and thickness, but the studies differed considerably in their design, exosome sources and follow-up periods. The authors concluded that larger, standardized randomized controlled trials are still needed.

A newer 2026 systematic review reached a similar conclusion: early clinical results are encouraging, but small samples, inconsistent protocols and a lack of robust controlled trials currently limit how confidently these findings can be generalized.

So, can exosomes be described as a scientifically established hair-regrowth treatment?

Not yet.

They are better described as an emerging regenerative approach being actively investigated for hair restoration.

A Very Important Note About Exosomes in Canada

This is where the conversation becomes particularly important for Canadian consumers.

Health Canada finalized guidance in April 2026 concerning topical products containing human-derived exosomes, extracellular vesicles and human cell-conditioned media.

Health Canada explains that classification depends on factors including the product's composition, function, purpose and claims. A product demonstrating therapeutic or pharmacological activity is not considered simply a cosmetic. Drug products require appropriate authorization before being sold in Canada.

Health Canada also specifically warns of potential risks associated with unauthorized products containing human-derived exosomes or related materials, including concerns related to human-origin materials and unsupported therapeutic claims.

For this reason, the source and regulatory classification of the exosomes used in BioAge should be confirmed before making therapeutic claims about the serum in Canada.

Terms such as “regenerates tissue,” “treats hair loss” or “stimulates hair growth” may have regulatory implications and should not be used simply because exosomes appear on an ingredient list.

5. Peptides: Small Molecules With a Big Reputation

Peptides are short chains of amino acids, the building blocks used to create proteins.

Different peptides can have very different biological functions, which means “contains peptides” is not enough information to predict how a product will perform.

In skincare, certain peptides have been investigated for their potential effects on hydration, extracellular-matrix processes and visible signs of skin aging.

A 2026 systematic review and meta-analysis evaluated 19 randomized controlled trials involving 1,341 participants. The researchers found improvements in some outcomes, including hydration and brightness, as well as a modest pooled effect on wrinkles. Results for elasticity and skin density were inconsistent, and the authors called for larger standardized studies.

Research specifically examining topical peptides has also reported encouraging findings for fine lines, texture and other measures of skin appearance, although the evidence varies substantially according to the peptide and formulation studied.

The important takeaway is that peptides are not interchangeable.

The exact peptides contained in BioAge, their concentrations and formulation matter when determining what evidence can reasonably be applied to the product.

Five Actives, Five Different Levels of Evidence

Putting the ingredients side by side helps clarify where the science currently stands.

Active	Why Researchers Are Interested	Current Evidence for Aesthetic Use
NAD+	Cellular energy and metabolic processes	Strong biological rationale; limited evidence for specific topical aesthetic outcomes
NMN	Precursor involved in NAD+ metabolism	Significant aging research; limited direct evidence for topical skin/hair applications
PDRN	Tissue repair and regenerative pathways	Emerging human evidence; small and heterogeneous clinical literature
Exosomes	Cell-to-cell communication and regenerative signaling	Promising early skin and hair data; evidence and protocols remain heterogeneous
Peptides	Various signaling and structural functions depending on peptide	Human evidence exists for selected peptides, but results depend heavily on formulation

This distinction is what responsible regenerative aesthetics should look like.

“Advanced” does not have to mean “proven to do everything.”

BioAge for Skin: What Is the Goal?

BioAge combines these five categories of actives into a formula intended for professional skin applications.

From a skincare perspective, the rationale behind the formula centres on ingredients being studied in relation to cellular processes, skin quality, repair pathways and extracellular-matrix biology.

However, the final results of a serum cannot be predicted solely from studies of its individual ingredients.

Formulation matters.

Concentration matters.

Stability matters.

Delivery matters.

And the method by which a product is applied to the skin can substantially affect its interaction with the skin barrier.

For those reasons, BioAge should not be presented as a substitute for established medical treatments or as a product guaranteed to “rebuild collagen.”

It is better understood as part of the developing field of regenerative aesthetics.

What About BioAge for Hair Restoration?

The scalp is another area attracting considerable interest in regenerative medicine.

Exosomes, in particular, are being investigated for their potential influence on hair-follicle signaling and androgenetic alopecia. Current clinical studies are encouraging, but the evidence remains preliminary and significantly less established than conventional therapies for pattern hair loss.

Hair loss also has many possible causes.

Genetics, hormonal factors, nutritional deficiencies, medications, illness, stress, inflammatory scalp conditions and other medical factors can all contribute.

A serum should therefore not replace an appropriate assessment when someone is experiencing unexplained, sudden or progressive hair loss.

At CurAge, the appropriate starting point is understanding the person's hair and scalp concerns before deciding whether a regenerative treatment belongs in their plan.

Why Combining Actives Doesn't Automatically Multiply Results

It is tempting to assume that five sophisticated ingredients must produce five times the benefit.

Biology does not work that way.

Combining NAD+, NMN, PDRN, exosomes and peptides creates an interesting formulation strategy, but each ingredient has different evidence, mechanisms, stability considerations and delivery challenges.

Unless the finished BioAge formulation itself has been evaluated in appropriately designed clinical trials, results from studies of individual ingredients cannot be combined to predict the performance of the serum.

That does not make the formula uninteresting.

It simply separates what is scientifically established from what remains promising.

And in regenerative aesthetics, that distinction is especially important.

Who Might Be Interested in BioAge?

BioAge may be worth discussing with a qualified CurAge professional if you are interested in advanced approaches to skin quality or hair and scalp care and would like to understand where regenerative ingredients may fit within a broader treatment plan.

The appropriate use will depend on factors including your goals, skin or scalp condition, medical history, other treatments and the exact method by which the product is being used.

For hair concerns in particular, professional evaluation may also help determine whether further medical assessment is warranted.

Meet BioAge at CurAge

The science of regenerative aesthetics is developing quickly.

NAD+ and NMN connect the conversation to cellular metabolism. PDRN has growing research behind its potential regenerative applications. Peptides have been investigated across numerous areas of skincare. And exosomes represent one of the most rapidly evolving areas of skin and hair research.

BioAge brings these five advanced actives into one formula.

What makes the conversation interesting is not a promise of overnight transformation. It is the opportunity to explore a new generation of ingredients while remaining clear about what research has established and what scientists are still working to understand.

If you are interested in regenerative skincare or hair restoration in Montreal and the West Island, book a consultation with CurAge to discuss BioAge and determine whether it is appropriate for your skin, scalp and treatment goals.

Frequently Asked Questions

What is BioAge?

BioAge is a professional serum containing five categories of advanced actives: NAD+, NMN, PDRN, exosomes and peptides. CurAge uses BioAge in the context of skin and hair/scalp applications. The exact composition, concentrations and intended use should be confirmed from the manufacturer's documentation.

Can BioAge increase collagen?

Some of the ingredient categories used in regenerative skincare have been investigated in relation to collagen and extracellular-matrix processes. However, evidence involving individual ingredients cannot automatically establish that the finished BioAge serum clinically increases collagen. Product-specific evidence is needed to support that claim.

Can exosomes regrow hair?

Early clinical research suggests exosome-based therapies may have potential for improving hair density and thickness, but the evidence remains limited and heterogeneous. Larger controlled studies and standardized treatment protocols are still needed.

What does PDRN do for skin?

PDRN and related polynucleotides are being investigated for regenerative dermatology, including skin rejuvenation and wound healing. Randomized studies have reported encouraging outcomes, but the overall evidence base remains relatively small and protocols vary.

What is the difference between NAD+ and NMN?

NAD+ is an essential molecule involved in cellular metabolism and energy-related processes. NMN is a precursor that participates in pathways the body uses to produce NAD+. Their biological relationship is well established, but evidence for specific topical cosmetic benefits is much less developed.

Are exosome products approved in Canada?

There is no blanket approval or classification covering every “exosome product.” Health Canada evaluates products according to factors including their composition, function, purpose and claims. Human-derived exosome products represented as having therapeutic or pharmacological effects may be regulated as drugs and require appropriate authorization.

This article is intended for general educational purposes and does not constitute medical advice, diagnosis or treatment. Research into several regenerative ingredients discussed here, particularly exosome-based skin and hair applications, remains emerging. Individual suitability depends on the product, method of application, medical history and treatment goals. Consult a qualified healthcare or aesthetic professional before undergoing treatment.