如何自然地加深头发颜色

方法 1

方法 1 的 6:使用芥子油

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买一些芥子油。你应该可以在专卖香料的店，或者有卖印度和东南亚产品的杂货店找到它。确保你买的是食用油，最好是冷榨油。不要买到精油，芥子精油会刺激皮肤。
在染发过程中，如果皮肤受到任何刺激，马上停止使用芥子油。你可以事先取硬币大小的量抹在耳朵后方，观察48小时，看看自己是否对它过敏。
本地杂货店的国际食品部门或许有卖芥子油。
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芥子油只能外用。一些欧美国家严禁食用芥子油，包括欧洲、美国和加拿大。它含有大量芥酸，会引起心脏问题和贫血，并增加患肺癌的风险。
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研究来源

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研究来源

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加热芥子油。将芥子油抹在头之前，先把它倒进一个小碗，放进微波炉稍微加热。你也可以将它倒进一个小锅，放在火炉上加热。不要让它变得太热，略高于室温就好。
如果使用锅子，加热后把油倒进一个碗里，拿到你要进行染发的地方。

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保护你的衣服、皮肤和染发的地方。芥子油会弄脏衣服、皮肤和你染发的地方。采取以下预防措施：
穿旧衣服，或者至少在肩膀围一条毛巾保护衣服。
戴上手套，以免双手被油弄脏。
在脖子、耳朵和发际线涂一层凡士林或浓稠的保湿霜，防止这些部位被弄脏。
用报纸或旧毛巾铺盖你进行染发的地方。

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将芥子油抹到头发上。从发尾开始。一旦发尾涂满了油，慢慢往上抹到发根。将发丝放到手指之间和（或）手里轻轻揉搓，确保涂抹均匀。
你可以用手或染发刷抹油。药房或美容用品店有卖染发刷。

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用芥子油按摩头皮。将油涂到发根后，你可以自己按摩头皮。这能滋润头皮。许多人声称用芥子油按摩头皮也能促进头发生长，不过几乎没有任何科学证据支持这一点。

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确保油分布均匀。双手穿过头发，确保油均匀覆盖着全部头发。用宽齿梳梳头可以帮助油分布均匀。

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用浴帽裹着头发。必要时，你也可以将塑料购物袋塑造成帽子的形状，用来裹着头发。

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等待至少2个小时。你也可以就这样过一夜，第二天早上再继续。

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洗头。用温和的洗发精洗头。你可能需要洗两次，油腻的感觉才会消失。头发还是会有一些油，最好不要用护发素，以免头发看起来很油腻。
要是你真的想用护发素，那就只在头发下半部抹一点点。

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如常做造型。

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每周重复不超过3次。每周最多可以用芥子油染发3次。

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方法 2

方法 2 的 6:使用印度醋栗粉

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购买印度醋栗粉。想在本地商店找到印度醋栗粉有点难，网上购买比较容易。如果你比较喜欢当面购买，或许能在卖印度产品、天然或药草产品的店找到它。

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将印度醋栗粉制成膏状。将2茶匙印度醋栗粉（约10毫升）放进一个碗。然后添加1茶匙油（约5毫升）。用什么油都行，很多人选择椰子油。然后再加水，刚刚好盖过印度醋栗粉和油就可以了。建议用热水。将所有材料拌匀，直到成细滑膏状。

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在调配好的染发膏中加点护发素。加到足以浸透头发就好。如果你的头发很长，或许可以将印度醋栗粉、油和水的分量增加至两倍或三倍。

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保护衣服。印度醋栗有加深颜色的作用，最好穿你不介意弄脏的衣服。如果你相信自己不会将混好的染发膏洒在裤子或袜子上，也可以只在肩膀围一条毛巾。

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弄湿头发，将它分成几个部分。先不要洗头，因为之后需要用洗发精洗掉染发膏。

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将染发膏抹到头发上。像涂护发素一样，将这个染发膏涂到头发上。确保它分布均匀，尤其要注意头皮和发尾。
印度醋栗有很强的抗氧化作用，对头皮很好。所以抹了染发膏后，不妨花一些时间好好按摩头皮吧。[3]
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等待30到90分钟。你可以用浴帽或塑料袋裹着头发，以免弄脏家具和衣服。

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洗头。

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每周重复一次。印度醋栗只有非常轻微的加深发色作用，可能需要一段时间才能见效。它的保湿和增量效果更广为人知。
人们通常将印度醋栗和指甲花结合使用，帮助加深和滋润头发。

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方法 3

方法 3 的 6:使用指甲花粉（海娜粉）

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购买指甲花粉。你可以在许多商店和网上买到指甲花粉。大部分天然食品店和一些药房都有卖。很多人极其信赖在印度产品店买到的指甲花，认为它们比较纯正。
如果你在天然食品店或药房买指甲花染发粉，记得检查标签，确保它只含有天然成分。一些生产商会将指甲花和普通染发剂常见的有害化学成分混在一起。
注意，纯正的指甲花粉会将头发染成红棕色。如果你想买深棕色或黑色的染发粉，里面会添加其它植物成分，比如靛蓝属植物。查看包装上的标签，确保所有成分都是天然的。

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备齐其它材料。你需要用一个耐脏的碗来调配指甲花染发膏，还要准备一个打蛋器搅拌它。另外，在涂染发膏时，你需要用一些发夹将头发分成几个部分，戴手套保护双手，还要用到一个染发刷。
涂完指甲花染发膏后，你还需要用一些东西裹住头发。许多人喜欢用热缩塑料膜，你也可以用浴帽或塑料袋。

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保护好衣服、皮肤和染发的地方。用指甲花染发会弄得很脏。换上你不介意弄脏的衣服。或者至少在肩膀围一条旧毛巾。在额头、脖子和耳朵涂凡士林或是一层厚厚的保湿霜，防止指甲花弄脏皮肤。最后，在你要染发的地方铺一些旧报纸或旧毛巾。

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将指甲花粉调配成膏状。调配方法取决于生产商的指示、指甲花粉用量和你想要染的颜色。if (WH.video)WH.video.add(document.getElementById(‘mvid-0adcda4064’));制作基本指甲花膏的常用材料包括滚烫的热水、柠檬汁和指甲花粉。调配出来的染发膏质地和土豆泥相似。[5]
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一些生产商要求将染发膏静置几小时才可以使用。检查包装上的指示，看看是否需要等一段时间才能用。

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将头发分成几个部分。用发夹将头发分成几个部分。根据头发厚度和长度来分头发。至少分成六段，颈背两段，头的中间两段，然后头顶两段。if (WH.video)WH.video.add(document.getElementById(‘mvid-13afa8f068’));

6
将指甲花膏涂在头发上。戴上手套，从脖子底部开始涂指甲花膏。每一个部分都从发尾往上涂到发根。涂完一个部分后，重新用发夹夹好，以免挡住其它部分。if (WH.video)WH.video.add(document.getElementById(‘mvid-08fc63747a’));每个部分都涂上大量指甲花膏，直到头发被浸透。
用染发刷涂可能会比较方便。如果染发膏太干硬，不容易用刷子抹，也不要担心，戴了手套后直接用手涂也是可以的。

7
裹住头发。许多人建议用塑料膜裹住涂了指甲花膏的头发。如果你不喜欢塑料膜，也可以用浴帽或塑料购物袋。重要的是裹住头发，尽量让头发贴近头。if (WH.video)WH.video.add(document.getElementById(‘mvid-14ef96c2df’));

8
静心等待。要等多久取决于生产商的指示，和你想要染多深的颜色。你可能需要等至少两个小时。有些人甚至就这样过一夜，第二天才洗掉。if (WH.video)WH.video.add(document.getElementById(‘mvid-3834a48fa3′));

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“}
9
洗掉指甲花膏。一定要戴手套，以免弄脏手。将所有指甲花膏洗干净后，就可以照常洗头和护发。
伏在水槽或者在浴缸打开水龙头洗会比较方便。结块的指甲花膏会从头发掉落，弄得很肮脏，所以很多人不喜欢在沐浴时这么做。

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“}
10
小心头发会弄脏它们接触到的东西。用指甲花染发后的头几天，头发可能会掉色，弄脏枕套和衣服。所以，要小心头摆放的位置。再多洗几次就不会掉色了。

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方法 4

方法 4 的 6:使用洗发精

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1
购买栗红色头发专用的洗发精和护发素。尽量选择最深的色号。如果你的头发本来就是栗红色，这些产品可以凸显头发上发亮的浅色，加深比较深的色调。
大部分药房都有卖这些产品。有些美发院卖的产品或许更有效，不过也更昂贵。

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2
像平时那样洗头和护理头发，但是用栗红色头发专用洗发产品，代替你常用的洗发精和护发素。

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“}
3
重复。洗头次数越多，就越快见效。每天或每隔一天洗一次头，你应该可以在一两周内看到效果。

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4
在洗发精里加可可粉。不想买栗红色头发专用洗发精？很多人声称在洗发精里加入等量的可可粉，也能加深发色。
在瓶子里倒入等量的洗发精和可可粉，然后用力摇晃直到混匀。

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方法 5

方法 5 的 6:使用红茶

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1
泡一壶浓烈的红茶。让它冷却，直到你可以把手指放进茶里搅动，而不会感到疼痛。

2
将红茶倒进一个大碗。碗要够大，可以装下你全部头发。

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3
把头发泡在茶里15分钟。

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4
洗头。

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“}
5
每天重复一次，坚持两周。这个方法很可能要坚持做两周才能见效。之后，你也许可以每周泡一次来维持发色。根据你的发质，头发也许很快就会恢复浅色。

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“}
6
试着变化一下。你可以稍微来点变化，盛满一大汤匙散装红茶茶叶（45毫升），和一大汤匙迷迭香叶（15毫升），放进约960毫升沸水中，泡约45分钟，然后等它冷却。
用洗发精洗头，把头发冲干净后，将混合液倒在头发上。用浴帽裹着头发，等待至少30分钟，然后用微温的水冲洗干净。[6]
X
研究来源

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方法 6

方法 6 的 6:使用咖啡

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1
泡一壶浓烈的咖啡。加入足以泡出差不多3杯咖啡的水。咖啡粉的量至少是你平时喝的两倍。

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2
让咖啡冷却。

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3
将咖啡倒在头发上。伏在水槽或者站在淋浴间，用咖啡洗头至少三次。
另一个方法是将咖啡倒进一个大碗，然后把头发浸在里面几秒钟。

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4
照常洗头，把头发冲洗干净。

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5
重复。每次用了这个方法后，你会发现头发颜色比之前深了两个色号。

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6
试着变化一下。将480毫升免洗护发素、2汤匙有机咖啡粉和240毫升泡好的咖啡混匀。咖啡要先放凉才能用。把它倒在头发上，约1小时后才洗干净。

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如何自然地加深头发颜色

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