Behind every bottle you order from RENTRASPA is 35 years of experience — and it's all here to help you get it right.

I'm Sreekanth Kumar, the founder of RENTRASPA — and that experience was earned across some of India's biggest names: Colgate, Spencer's Retail, and Future Group, where I ran Private Brands across the country — Tasty Treat, Clean Mate, Premium Harvest, names you've probably picked off a shelf without a second thought. Three and a half decades of learning FMCG inside out: sales, supply chain, merchandising, what makes a product move and what makes it die on the shelf.

A decade ago, I decided to put all of it to work on something of my own. And today, that same experience has one job: to help you and your brand succeed.

My first idea wasn't glass. It was dignity.

Dignifi — and the night the cyclone took everything

My first product was a bath wipe for patients who can't get to a bathroom — the bedridden, the elderly, the mobility-challenged. Something that lets a person stay clean, and stay dignified. I called it Dignifi, and in 2015 I set up the company specifically to bring it to market.

We did it properly — months of market research, sourcing, getting everything right — building toward a planned launch in January 2017.

I still remember the day the packaging material and paper finally arrived at our warehouse, just weeks before launch. We unloaded it, stacked it, and went home happy. That same night, Cyclone Vardah hit Chennai (December 2016). Our warehouse flooded. We lost the entire consignment.

It wasn't insured. We'd taken delivery only that day — the cover hadn't kicked in yet.

That's the kind of moment that tells you whether you actually want to do this. We started again, and launched Dignifi as planned, mainly through Amazon — where it became an instant hit. It stayed on the market right up until Covid, when our manufacturer pivoted entirely to making hand sanitizers and stopped our production. A product born to help people stay clean, paused by the world's sudden need to stay clean.

Ida's Essence — and a lesson in what "natural" really sells for

Alongside Dignifi, in 2016 I started building a personal-care brand close to my heart: Ida's Essence — essential oils, carrier oils, handmade soaps, neem-wood hair combs. Real, natural, honest.

It taught me a hard truth about online retail in India. The market was flooded with cheap, synthetic oils sold under the label of "natural," and an honest product struggled to be heard over the noise. One thing, though, flew off the shelves: our neem-wood combs. People knew the real thing when they felt it.

Ida's Essence eventually got paused — not because it failed, but because something else was quietly taking over all my time, money and attention. Glass.

The 170-square-foot room, and a 2am idea

Here's the part nobody planned.

While sourcing glass bottles for Ida's Essence, I found a supplier I liked — but the minimum order quantity was enormous. I was effectively forced to buy far more than I needed. So I did.

My office at the time was a single 170-square-foot room. Picture it: glass bottles stacked floor to ceiling, my table and chair squeezed in, and my cans of essential and carrier oils crammed into one corner. Just me and a roomful of bottles I wasn't sure what to do with.

Late one night in 2016, I was lying awake, turning the problem over: what do I do with all this glass? And it hit me. Why not just sell the bottles themselves?

I listed a few amber bottles — 15ml, 30ml, 50ml, 100ml — with dropper sets, on Amazon.

Week one: 2 orders. Week two: 5 orders. After that, we never looked back.

RENTRASPA is born

The orders grew until we were dispatching 70 to 110 parcels a day. We outgrew the little room and moved to a bigger space in Thiruvanmiyur, closer to home.

I gave the glass business its own name — RENTRASPA — and that was a deliberate decision, not a random one. If you sell something generic and unbranded on a marketplace, anyone can hijack your listing, because there's nothing to protect it. A brand gave us an identity that was ours to defend.

But marketplaces giveth and marketplaces taketh away. Over time, rising marketplace costs, mounting returns and fake orders steadily ate into our margins, until the economics simply stopped making sense. So we made the call to step off Amazon.

By then we had something more durable: a brand people actually searched for. We'd launched our own website in 2019 — first as glassbottles.online, then elements5.in — and finally settled on RENTRASPA, the name the market already knew us by, thanks to those early Amazon years.

Where we are now

Today RENTRASPA is one of India's trusted names in cosmetic glass packaging — bottles, jars, vials, droppers, pumps and closures for skincare brands, salons and contract manufacturers across the country.

It came from a flooded warehouse, an uninsured loss, a roomful of bottles, and a 2am idea. None of it was the plan. All of it was the point.

If there's one thing 35 years in FMCG and a decade of building my own brands has taught me, it's this: you don't always get to choose the product. Sometimes the product chooses you. Your job is to be awake at 2am, paying attention.

And whatever you're building next — that experience is here, ready to help you get it right.

— Sreekanth Kumar, Founder, RENTRASPA

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