Hoo's Joint and skin Articles
Expert information and articles — Hoo
How to Take Oral Retinol Safely and See Real Skin Brightening Results!
Is it okay to take oral retinol and multivitamins together? From the formula to convert IU to μg RAE on supplement labels to daily limits, differences between retinyl palmitate and beta-carotene, precautions for pregnant women and smokers, and safe dosing methods—a practicing pharmacist explains it all in easy-to-understand terms.
- Vitamin A
- Inner beauty
- Skin health
- Liver health
- Retinol
- Beta-carotene
58028 min read
What Happens When You Take Oral Retinol Carelessly for a Month
Even with mild irritation, oral retinol can cause vitamin A accumulation in the liver, leading to headaches, dry eyes, and hair loss. A pharmacist explains why isotretinoin, high-dose multivitamins, and those planning pregnancy need to be cautious, and clarifies safe upper limits and when to stop.
- Vitamin A
- Inner beauty
- Skin health
- Retinol
34117 min read
Why Is Topical Retinol Irritating, But Oral Retinol Seems Fine?
Oral retinol requires understanding vitamin A absorption principles and accumulation risks. This covers the limitations of 2-week glow-up claims, precautions against overdose and isotretinoin interactions, the importance of taking it after meals, product selection criteria, and combinations to avoid.
- Vitamin A
- Inner beauty
- Skin health
- Retinol
37407 min read
PDRN, Why Is This Dermatology Ingredient Becoming a Hit at the Gym?
A pharmacist breaks down why PDRN supplements are gaining attention beyond skin care for fatigue, exercise recovery, and joint management. Learn the science behind mitochondria, chronic inflammation, and tendon/ligament recovery, plus the best combinations with Coenzyme Q10 and magnesium, and precautions for gout and pregnancy.
- Skin health
- Fatigue recovery
- Joint health
- PDRN
12578 min read
PDRN Supplements, Do They All Dissolve in the Stomach?
Does PDRN supplement really dissolve completely in the stomach? A pharmacist breaks down the digestion and absorption pathway, low-molecular-weight technology, enteric coating, and CNT/ENT transporter mechanisms in easy-to-understand terms.
- Collagen
- Inner beauty
- Skin health
- PDRN
130511 min read
PDRN alone isn't enough—what you take it with matters more
PDRN supplements work differently depending on glutathione, exosome, and collagen combinations—affecting skin brightening, post-procedure recovery, and elasticity management. A pharmacist breaks down ingredient functions, selection criteria by purpose, oral bioavailability, and why gout patients and pregnant women need professional consultation.
- Antioxidant
- Aging
- Inner beauty
- Skin health
- PDRN
14057 min read
PDRN Supplements: Why Extract from Plants Instead of Salmon? Here's the Real Reason
When choosing plant-based PDRN supplements, a pharmacist has organized the differences from salmon-derived products, purity of 90% or higher, vitamin B complex formulation, low-molecular processing, and easy-to-miss selection criteria and safety checkpoints including cautions for gout and pregnant women.
- Inner beauty
- Skin health
- PDRN
15656 min read
PDRN Supplements, Can Anyone Take Them? — Pharmacist's Final Checklist
PDRN supplements differ in micronization methods, DNA purity, and MFDS functional approval by product. A pharmacist has compiled how to choose quality products and precautions before intake, covering gout and uric acid levels, duplicate niacin intake, and differences between film, gummy, and liquid formulations.
- Inner beauty
- Skin health
- Joint health
- PDRN
161611 min read
If You've Been Taking Collagen for 3 Months but Haven't Seen Any Changes, There's One Missing Piece
PDRN supplements are not necessarily better than collagen. A pharmacist breaks down why the two ingredients have different roles, what A2A receptors and salvage pathways mean for skin regeneration, and how far oral absorption can go—all explained clearly following the flow of research papers.
- Collagen
- Inner beauty
- Skin health
- PDRN
15028 min read
A Salmon Component 97% Similar to Human DNA, PDRN is the Next Step Beyond Collagen
If you've been curious about why PDRN supplements are gaining attention, this article has the answers. A pharmacist walks you through the DNA principle extracted from salmon milt, its high similarity to the human body, safety, differences from collagen, why it's sought after with procedures, and key checkpoints.
- Collagen
- Aging
- Inner beauty
- Skin health
- PDRN
25087 min read