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	The New Ultimate Acne Guide: From Root Cause to Clear Skin
A complete .org-style breakdown of what acne really is, why it happens, and how to actually fix it — from the inside and outside.
Table of Contents
- 1. Why You Have Acne (Root Causes)
 - 2. External Treatments (Topicals)
- 2.1 Tretinoin
 - 2.2 Azelaic Acid
 - 2.3 Clindamycin
 - 2.4 Benzoyl Peroxide (BPO)
 - 2.5 Adapalene
 - 2.6 Niacinamide
 
 - 3. Internal Treatments (Orals)
- 3.1 Isotretinoin
 - 3.2 Antibiotics
 - 3.3 Spironolactone
 - 3.4 Zinc, Vitamin A, Omega-3
 
 - 4. Fixing the Root Cause
 - 5. Skin Barrier & Routine
 - 6. Timeline & Realistic Expectations
 - 7. Final Words
 
1. Why You Have Acne (Root Causes)
Acne isn't bad luck. It's your body's response to deeper imbalances:- Excess androgens → more sebum → clogged pores
 - High insulin / IGF-1 from sugar, dairy, whey
 - C. acnes bacteria trapped under dead skin
 - Inflammation and oxidative stress
 - Harsh products stripping your skin barrier
 - Gut-liver axis dysregulation (food intolerances, dysbiosis)
 
2. External Treatments (Topicals)
2.1 Tretinoin
Effectiveness: ★★★★★Mechanism: Retinoid that speeds cell turnover, reduces microcomedones, boosts collagen.
Why it works:
- Clears dead skin before it clogs pores
 - Fades pigmentation & fine lines
 - Long-term prevention of new acne
 
- Started too aggressively → barrier damage
 - No moisturizer or sunscreen → irritation
 - Quit too early (needs 8–12+ weeks for results)
 
2.2 Azelaic Acid (15–20%)
Effectiveness: ★★★☆☆Mechanism: Anti-inflammatory, antibacterial, keratolytic.
Best for:
- Redness, rosacea-type acne, pigmentation
 - Darker skin tones (safe for melanin)
 - Most effective medication used for acne scarring
 
- Not used consistently (works best AM/PM)
 - Combined with irritating actives (like BPO or harsh exfoliants)
 
2.3 Clindamycin (topical antibiotic)
Effectiveness: ★★☆☆☆ (only in combination)Mechanism: Inhibits bacterial protein synthesis (kills C. acnes)
Why it works:
- Effective short-term bacteria control
 
- Used alone → bacteria develops resistance
 - Not combined with retinoid or BPO
 
2.4 Benzoyl Peroxide (BPO)
Effectiveness: ★★★★☆Mechanism: Releases oxygen into pores → kills bacteria
Use case:
- Inflammatory acne
 - Paired with antibiotics to prevent resistance
 
- Using too much → irritation, over-drying
 - Bleaches clothing/towels — use carefully
 
2.5 Adapalene
Effectiveness: ★★★★☆OTC retinoid: Less irritating than tretinoin, similar benefits
Good for: Beginners, sensitive skin types
2.6 Niacinamide
Effectiveness: ★★☆☆☆ (supportive)Function: Regulates sebum, anti-inflammatory, brightens skin
Why include it:
- Supports barrier repair
 - Pairs well with most actives (AM use preferred)
 - Doesn’t fix acne alone but helps overall skin health
 
3. Internal Treatments (Orals)
3.1 Isotretinoin (Accutane)
Effectiveness: ★★★★★Mechanism: Shrinks sebaceous glands, alters keratinization
Works when:
- Severe, nodulocystic acne
 - Refractory to topicals
 
- Poor compliance (daily use mandatory)
 - No support (hydration, lip balm, liver monitoring)
 
3.2 Oral Antibiotics (Doxycycline, Minocycline)
Effectiveness: ★★★☆☆ (short-term only)Mechanism: Anti-inflammatory + antibacterial
Use case:
- Moderate acne (short-term only: 8–12 weeks)
 
3.3 Spironolactone
Effectiveness: ★★★★☆ (in women)Anti-androgen: Blocks androgen receptors
Best for:
- Hormonal acne in women (esp. jawline, cycle-related)
 
3.4 Supplements: Zinc, Omega-3, Vitamin A
Effectiveness: ★★☆☆☆ (supportive)Zinc Picolinate (30–50mg): Regulates sebum, lowers DHT
Omega-3 (EPA focus): Anti-inflammatory
Vitamin A: Helps keratinocyte turnover (low dose; do not combine with Accutane)
4. Fixing the Root Cause
Hormonal Support:
- Lower dairy/sugar → ↓ insulin / IGF-1
 - Zinc, green tea extract → ↓ DHT
 - Sleep, stress control → ↓ cortisol
 
Diet:
- Eliminate: seed oils, high-GI carbs, whey
 - Add: liver, oily fish, cruciferous veg, probiotic foods
 
Gut & Liver:
- NAC, digestive enzymes, probiotics
 - Avoid alcohol & processed food
 
5. Skin Barrier & Routine (AM/PM)
AM:- Gentle cleanser
 - Niacinamide or azelaic acid
 - Moisturizer
 - SPF 50+
 
- Cleanser
 - Tretinoin or Adapalene (2–3x/week, not with BPO or clinda same night)
 - Clindamycin or BPO (alternate with tretinoin)
 - Moisturizer
 - Vaseline on dry spots
 
6. Timeline & Realistic Expectations
| Week | What Happens | 
|---|---|
| 1–2 | Irritation, purging begins | 
| 3–6 | Texture improves slowly | 
| 6–10 | Oil lessens, breakouts drop | 
| 12+ | Pigmentation fades, glow | 
Consistency > Strength. Acne takes time.
7. Final Words
Acne is the signal — not the root issue.You need to:
- Address systemic factors (hormones, gut, diet)
 - Support your skin barrier
 - Be religiously consistent
 
Be aware: Most dermatologists will try to prescribe you oral antibiotics like minocycline or topical clindamycin. You should avoid using them as a standalone treatment — they don't fix the root cause and can lead to resistance.
Instead, ask for Adapalene (Differin) or ideally Tretinoin. Those actually work long-term and address the problem at its core.
With the right tools, acne is beatable.
Don’t quit after 2 weeks. Quit when you win.
If u have tips to improve my post or have something additional to say from experience or knowledge about acne, please do so.