Bakuchiol vs Growth Factors

Bakuchiol: May modestly improve fine lines and uneven pigmentation. Growth Factors: Sold in creams for photoaging; evidence is specific to particular products.

Research updated 2026-10-25

Five bakuchiol serums on white, including a dropper bottle with purple flowers, COSRX, Paula's Choice, Herbivore and LAUEF

Five growth factor serums lined up on white, including MUMUK, DRMTLGY, PEPFACTOR, E.G.F. and Allies of Skin

Which one?At a glance What it helps Diagrams Using both Strengths Results Safety How it works Products Questions

Which one is right for you?

Choose Bakuchiol if…

Consider for cosmetic photoaging when retinol is uncomfortable; evidence is smaller.

Retinol irritates your skin
You want a gentler anti-aging step
You accept smaller evidence

Choose Growth Factors if…

Consider only as an optional cosmetic; independent evidence is limited.

Optional anti-aging step
You accept limited independent evidence
Intact, non-irritated skin

Fine together

Can you use both?

Both are gentle anti-aging options. Apply the thinner serum first.

At a glance

● Bakuchiol

● Growth Factors

Type

Plant-derived cosmetic active

Protein signalling ingredient family

What it does

May modestly improve fine lines and uneven pigmentation.

Sold in creams for photoaging; evidence is specific to particular products.

Best for

Wrinkles and Fine Lines; Uneven Skin Tone; Sensitive Skin

Wrinkles and Fine Lines

Studied concentrations

0.5% cream twice daily in the cited 12-week trial.

No standardized strength; the identity and mixture of proteins vary.

When to use

Morning or night, as directed by the finished product.

Time to results

Often 8–12 weeks in small cosmetic studies; results may be subtle

Irritation

May still irritate or trigger a rash; botanical origin does not guarantee tolerance.

May irritate; use only as directed on intact skin.

Sensitive skin

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Available

Cosmetic or OTC products; some high-strength procedures are separate treatments.

What it helps

Compare uses by strength of evidence. Evidence level describes confidence in a benefit, not its size.

Evidence level

Bakuchiol

Growth Factors

Limited evidenceEarly or small studies

A relaxed forehead with faint shallow horizontal fine lines.

Wrinkles and Fine Lines

A small active-comparator trial found improvement over 12 weeks.

Uneven Skin Tone

Hyperpigmentation improved in the same small trial.

Sensitive Skin

Less stinging than retinol in one trial; individual tolerance still varies.

Wrinkles and Fine Lines

A small uncontrolled pilot reported improvement with a mixed growth-factor gel.

Insufficient evidence

Acne

The reviewed sources do not establish this ingredient as a treatment for this concern.

Flat tan patches with soft irregular edges across the forehead and upper cheek of an adult with light skin, the surface completely smooth.

Melasma

The reviewed sources do not establish this ingredient as a treatment for this concern.

Acne

The reviewed sources do not establish this ingredient as a treatment for this concern.

Melasma

The reviewed sources do not establish this ingredient as a treatment for this concern.

Sagging Skin

The cited pilot does not establish clinically meaningful lifting.

How it works

Bakuchiol mechanism diagram. Influences cell signaling: Experimental effects overlap some retinoid pathways. May improve photoaging signs: Small clinical studies suggest benefit. — Open full-size diagram
Diagram explanation and sources
Influences cell signaling: Experimental effects overlap some retinoid pathways. May improve photoaging signs: Small clinical studies suggest benefit.
Schematic illustration; not a measurement of skin penetration. Effects vary with ingredient identity and formulation.
Source 1

Growth Factors mechanism diagram. Signals can influence cells: Growth factors interact with specific receptors. Intact skin limits delivery: Large proteins may not reach deeper targets. — Open full-size diagram
Diagram explanation and sources
Signals can influence cells: Growth factors interact with specific receptors. Intact skin limits delivery: Large proteins may not reach deeper targets.
Schematic illustration; not a measurement of skin penetration. Effects vary with ingredient identity and formulation. Some illustrated pathways are experimental; laboratory findings do not establish a clinical treatment benefit.
Source 1

Using both in one routine

Built from where each one usually sits in a routine. Introduce one at a time.

Morning

Step 1

Cleanser

Step 2

BakuchiolMorning or night

Step 3

Growth FactorsMorning or night

Step 4

Moisturizer

Step 5

Sunscreen

Night

Step 1

Cleanser

Step 2

BakuchiolMorning or night

Step 3

Growth FactorsMorning or night

Step 4

Moisturizer

Strengths and forms

Concentrations

0.5% bakuchiol cream has been studied for photoaging. This does not make it percentage-equivalent to retinol or establish a best strength for every bakuchiol product.

0.5%

Studied bakuchiol cream

A small randomized trial compared a specific bakuchiol cream with retinol. The study used different application schedules.

Choosing a strength: Choose a finished formula with clear labeling. Bakuchiol content and whole-plant extract content are not the same thing.

Higher strengths: Stronger marketed percentages are not established as more effective. A natural origin does not rule out irritation or allergy.

Formula matters: Do not compare bakuchiol and retinol by matching numbers. Product base, dosing schedule and ingredient identity differ.

Growth factors include different signaling proteins and mixtures. A percentage of conditioned media or a supplier complex does not specify the amount or activity of each growth factor.

Choosing a strength: Look for identification of the growth factors and clinical evidence for the exact finished formula.

Higher strengths: There is no established universal cosmetic percentage or proof that a higher blend percentage produces better results.

Formula matters: Early human studies of particular growth-factor preparations do not validate every growth-factor serum or delivery method.

Forms

Serum · Oil · Cream

Serum · Cream

When you’ll see results

Approximate windows, not promises.

● Bakuchiol

● Growth Factors

First few weeks

First few weeksAssess tolerance and texture; immediate softness can come from the base formula.

4–8 weeks

4–8 weeksSubtle changes may appear in some tested products; evidence varies.

8–12 weeks

8–12 weeksCompare photographs in the same lighting and reassess benefit.

3–6 months

3–6 monthsPhotoaging trials often need several months; expect modest rather than dramatic change.

6–12 months

6–12 monthsLong-term evidence is limited for many cosmetic actives; continue only if useful.

Safety and sensitive skin

Common reactions

May still irritate or trigger a rash; botanical origin does not guarantee tolerance.

May irritate; use only as directed on intact skin.

When to stop

Stop for persistent burning, swelling, blistering or a new rash. Seek urgent care for breathing difficulty or a severe allergic reaction.

Sensitive or inflamed skin

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Important limits

Do not use a cosmetic product as a substitute for diagnosis of an unexplained, changing or persistent skin problem.

Pregnancy

Marketed that way, but there is very little safety data, and plant origin is not evidence. Ask the doctor managing your pregnancy. Azelaic acid is the ingredient with an actual record in pregnancy.

Data are limited and these are usually paused in pregnancy; ask the clinician managing your pregnancy.

How it works

In the skin

On the skin. The finished product delivers bakuchiol in a particular vehicle.

Entering skin. Below the 500 Da guideline; delivery still depends on the formula, solubility, stability and skin condition. Size does not prove effectiveness or penetration depth.

Conversion. No activation step is established as necessary for its intended topical role.

Skin response. Shows retinoid-like effects in experimental models but is not converted into retinoic acid.

Additional effects. Proposed pathways do not establish a measured depth of delivery or clinical benefit beyond the studies cited.

On the skin. The finished product delivers growth factors in a particular vehicle.

Entering skin. No single molecular mass. The 500 Da guideline cannot be applied to this whole ingredient family or mixture.

Conversion. No activation step is established as necessary for its intended topical role.

Skin response. Growth factors influence cell signalling, but passage of large proteins through intact skin is a delivery challenge.

Additional effects. Proposed pathways do not establish a measured depth of delivery or clinical benefit beyond the studies cited.

Getting in

Below the 500 Da guideline; delivery still depends on the formula, solubility, stability and skin condition. Size does not prove effectiveness or penetration depth.

No single molecular mass. The 500 Da guideline cannot be applied to this whole ingredient family or mixture.

Product examples

Bakuchiol

Avène Dermabsolu Concentrated Reshaping Serum

Growth Factors

Cosrx Peptide Serum — Six peptides plus niacinamide, 150 ml for around $20. Good value — the niacinamide does more work than the peptides.

Common questions

Bakuchiol:What should I choose bakuchiol for?

Consider for cosmetic photoaging when retinol is uncomfortable; evidence is smaller.

Bakuchiol:How strong is the evidence?

A 44-person trial compared twice-daily bakuchiol with once-daily retinol without a vehicle arm. No significant difference is not proof of equal efficacy or equal long-term safety.

Growth Factors:What should I choose growth factors for?

Consider only as an optional cosmetic; independent evidence is limited.

Growth Factors:How strong is the evidence?

An uncontrolled 14-person pilot tested eight growth factors together for 60 days. Without a vehicle control, it cannot separate the formula, natural variation and growth-factor effects.

Sources