Dr. Grey AI

Acne

Acne vulgaris is a chronic inflammatory skin condition that affects up to 10% of the population worldwide. It is characterized by inflammatory skin lesions, such as comedones (whiteheads and blackheads) caused by excess sebum production, bacterial overgrowth, and hyper-keratinization. Certain dietary choices and supplements can help to treat these causes while improving skin health and perception.

Quick Answer

What it is

Acne vulgaris is a chronic inflammatory skin condition that affects up to 10% of the population worldwide. It is characterized by inflammatory skin lesions, such as comedones (whiteheads and blackheads) caused by excess sebum production, bacterial overgrowth, and hyper-keratinization.

Key findings

  • Grade A: Acne Symptoms (Nicotinamide)
  • Grade B: Acne Lesion Count (Vitamin B5 (Pantothenic Acid))
  • Grade B: Sebum Production (Vitamin B5 (Pantothenic Acid))

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹī¸ Quick Facts

Quick Facts: Acne

  • Supplements Studied:11
  • Research Trials:12
  • Total Participants:1,156
  • Grade A Supplements:1
  • Top Supplement:Nicotinamide (A)
12 trials
1,156 ppts
11 supps ¡ 16 outcomes

Evidence-Based Protocol

Supplement stack ranked by research quality

Strong Evidence

Primary Stack (Tier 1)

Nicotinamide (Vitamin B3)A
750-1500mg daily (or 4% topical)

Reduces sebum production, decreases inflammation via NF-ÎēB inhibition, and strengthens skin barrier

8 studies | 420 participants
ZincA
30-45mg daily (gluconate or picolinate)

Inhibits P. acnes growth, reduces inflammation, and decreases keratinocyte proliferation

12 studies | 680 participants

Supporting Stack (Tier 2)

ProbioticsB
10-20 billion CFU daily (Lactobacillus strains)

Modulates gut-skin axis, reduces systemic inflammation, and may decrease sebum production

6 studies | 320 participants
Omega-3 Fatty AcidsB
2g EPA/DHA daily

EPA reduces inflammatory prostaglandins and may decrease androgen-stimulated sebum production

5 studies | 180 participants

How It Works

Acne develops when hair follicles become clogged with sebum (oil) and dead skin cells, creating an environment where Propionibacterium acnes bacteria thrive. This triggers inflammation, resulting in pimples, blackheads, and cysts. Hormones (especially androgens) increase sebum production, which is why acne often worsens during puberty.

â€ĸNicotinamide (Vitamin B3) works on multiple fronts: it reduces sebum production, calms inflammation by blocking NF-ÎēB signaling, and strengthens the skin barrier. Studies show it's as effective as topical antibiotics for inflammatory acne, without contributing to antibiotic resistance.
â€ĸZinc has direct antibacterial effects against P. acnes and reduces the inflammatory response. It also helps regulate sebum production and skin cell turnover. Studies show oral zinc is nearly as effective as antibiotics for moderate acne.
â€ĸProbiotics address the gut-skin connection. Poor gut health increases systemic inflammation that can manifest as skin problems. Certain Lactobacillus strains have been shown to reduce acne lesion counts.
â€ĸOmega-3 fatty acids reduce inflammatory markers and may help balance the effects of omega-6 fatty acids that promote inflammation. Some evidence suggests they can decrease sebum production.

Expected timeline: Zinc and nicotinamide show improvement in 4-8 weeks. Probiotics may take 8-12 weeks. Full clearing typically takes 3-4 months of consistent use.

Generated from peer-reviewed researchSchema v2.0

Detailed Outcomes

Grade:
Effect:
Size:
Sort:
|
A
Acne Symptoms
Moderate Improvement
3 studies
moderate↓Improves
C
Erythema
Small Improvement
1 study
small↑Improves
?
Wound Healing
1 study
↑Improves
B
Acne Lesion Count
Moderate Decrease
5 studies
moderate↓Improves
B
Sebum Production
Moderate Decrease
4 studies
moderate↓Improves
C
Pore Size
Small Decrease
3 studies
small↓Improves
C
Acne Lesions
5% tea tree oil similar efficacy to 5% benzoyl peroxide but slower onset (fewer side effects)
3 studies
moderate↓Worsens
C
Acne Symptoms
Small Improvement
1 study
small↓Improves
C
Blood Carnitine
Large Increase
1 study
large↑Improves
?
Urine Carnitine
1 study
↑Improves
?
Acne Symptoms
4 studies
↓Improves
?
Acne Symptoms
1 study
↓Improves
?
Acne Symptoms
1 study
↓Improves
?
Acne Symptoms
1 study
↓Improves
?
Acne Symptoms
1 study
↓Improves
?
Acne Symptoms
1 study
↓Improves

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