Retaine is a 3-part daily system — nutrient capsules, collagen peptides, and a scalp serum — designed to support your hair's health and growth cycle while you're losing weight fast and eating less.
"I wish someone had told me about the shedding window before I started. Retaine was the first thing that made me feel like I had a plan." — Dana M., Retaine member since month 2 of her prescription
It's not just you, and it's not random. When your body changes this fast, your hair often reacts. Here's what's actually happening — calmly, without the scare tactics.
Appetite suppression means smaller meals, and smaller meals often mean less vitamin D, zinc, iron, and protein — nutrients your hair depends on. Hair is one of the first places your body cuts back when intake drops.
Fast weight loss is one of the known triggers of telogen effluvium — a temporary state where more follicles than usual shift into their resting-and-shedding phase. It typically shows up 2–5 months in, which is why it feels like it "came out of nowhere."
This type of shedding generally resolves as your body adjusts — and the follicles are still alive. Nutrition and scalp care matter most during this exact window, which is why consistent daily support is the whole idea behind Retaine.
Retaine is a dietary supplement that supports hair health and helps fill nutrient gaps when you're eating less. It is not a drug and is not intended to prevent or treat any side effect of any medication. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Each part of the system covers a different piece of the puzzle — nutrients, protein building blocks, and the scalp itself.
The nutrients most commonly under-consumed when your appetite is switched off — at doses chosen for the hair growth cycle, not label decoration.
When meals shrink, protein is usually the first thing that slips — and hair is made of protein. This is the easiest 10 grams you'll get all day.
Nutrition works from the inside. This works right where the shedding happens — a lightweight, leave-in serum for the active shedding window.
Hair responds slowly — a full growth cycle phase takes months, not weeks. That's why Retaine is designed as a 90-day plan, matched to the timeline your hair is actually on.
Your appetite drops before your hair reacts. Starting nutrient support now means your reserves are topped up before the typical shedding window even begins.
This is when most people notice the drain, the brush, the ponytail. It's also exactly when daily nutrition and scalp support matter most. Consistency here is the whole game.
As shedding settles, new growth needs the same building blocks — protein, minerals, vitamins — to come in strong. Keep feeding the cycle you want.
90-day money-back guarantee · Ships within 24 hours
| Retaine | Generic hair vitamins | $88/mo leading hair supplement | |
|---|---|---|---|
| Designed for GLP-1 nutrient gaps | ✓ | ✗ | ✗ |
| Includes 10 g collagen protein daily | ✓ | ✗ | ✗ |
| Includes topical scalp serum | ✓ | ✗ | Sold separately |
| Price per month | $69 | $15–25 | $88+ |
| 90-day money-back guarantee | ✓ | Rarely | Varies |
Started my medication in March, and by month three I was genuinely scared to wash my hair. My doctor said the shedding was likely temporary, but "wait it out" felt awful. I've been on Retaine for about 10 weeks now. Shedding calmed down around week 7 or 8 — can't say for sure what did it, but I'm keeping the routine.
Down 34 lbs and thrilled — but nobody warned me about the hair part. I found Retaine after googling at 2am. The collagen honestly disappears in coffee, which is the only reason I've stayed consistent. Three months in, my ponytail feels less thin. Not miraculous, just steady.
I like that it's one box with everything instead of me piecing together five bottles from the drugstore. The capsules are easy on my stomach, which matters because it's already sensitive on the meds. Only gripe: I use the serum generously and run low by week 3. Four stars for that.
My sister lost a lot of hair on her weight-loss meds, so I started Retaine the same week I started mine. Now at month 4 — some extra hairs in the brush but nothing like what she went through. Obviously everyone's different, but I feel like I got ahead of it instead of reacting to it.
The shedding started for me around month two and honestly it hit my confidence harder than I expected. Been on the full system since June. At my last appointment my stylist pointed out all the baby hairs along my part. I nearly cried in the chair. Still on my journey — 22 lbs to go — but I feel like myself again.
I'm a nurse, so I side-eye anything that promises the moon. Retaine doesn't. It's sensible nutrition for people who are eating 1,200 calories a day, plus a scalp serum. That's exactly what I wanted. Two months in: hair feels stronger at the roots. The night serum step is easy to forget when I'm tired — that's on me.
No proprietary blends, no pixie dusting. Here's what's inside and the reason each ingredient earned its place.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before adding supplements to your routine, especially alongside prescription medication.
The shedding window spans months — your plan should too. Most members choose the 90-Day Plan because it matches the hair growth cycle.
The full 3-part system, delivered monthly at the subscription price — committed for the 90 days your hair cycle actually needs.
Ships within 24 hours · 90-day money-back guarantee
One month of the full 3-part system. No subscription — a good way to meet the ritual.
Ships within 24 hours
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Use the complete system for 90 days. If you don't feel it was worth every dollar, email us and we'll refund your entire purchase — even if the bottles are empty. No return label, no interrogation, no hard feelings. We can offer that because most people who finish the 90 days stay.
You've worked hard for this change. The new energy, the old jeans, the photos you don't avoid anymore. Your hair should be part of that picture — supported, cared for, and ready for what's next.